CBSE Class 9 Science Natural Resources Worksheet Set A

Read and download free pdf of CBSE Class 9 Science Natural Resources Worksheet Set A. Download printable Science Class 9 Worksheets in pdf format, CBSE Class 9 Science Chapter 14 Natural Resources Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Science Class 9 Assignments and practice them daily to get better marks in tests and exams for Class 9. Free chapter wise worksheets with answers have been designed by Class 9 teachers as per latest examination pattern

Chapter 14 Natural Resources Science Worksheet for Class 9

Class 9 Science students should refer to the following printable worksheet in Pdf in Class 9. This test paper with questions and solutions for Class 9 Science will be very useful for tests and exams and help you to score better marks

Class 9 Science Chapter 14 Natural Resources Worksheet Pdf

Question. Which letters could correspond to carbon dioxide and carbon monoxide in the flowchart shown here?

""CBSE-Class-9-Science-Natural-Resources-Worksheet-Set-A

(a) Both would correspond to R
(b) Both would correspond to s
(c) Carbon dioxide would correspond to R and Carbon monoxide to S
(d) Carbon dioxide would correspond to S and Carbon monoxide to R

Answer : C

Question. In many countries including India, petrol cars are expected to use unleaded petrol and not leaded petrol which was used earlier. What is the reason for this?
(a) Unleaded petrol is cheaper than leaded petrol
(b) Unleaded petrol is less hazardous for human health
(c) Unleaded petrol gives more mileage than leaded petrol
(d) All of the above

Answer : B

Question. The Andaman Islands in the Bay of Bengal depend exclusively on rain for their freshwater supply. Some of the hotels in the Andamans started using seawater instead of fresh water for flushing toilets. This is an example of_______________.
(a) recycling of resources
(b) conservation of resources
(c) prevention of pollution
(d) environmental planning

Answer : B

Question. Among the cities shown, which receives the most rainfall in a year?
Study the graphs showing the average temperature (using the scale on the RIGHT) and rainfall statistics (using the scale on the LEFT) for 4 important cities.  The question is based on this data

 ""CBSE-Class-9-Science-Natural-Resources-Worksheet-Set-A-1

(a) Adelaide
(b) London
(c) Tokyo
(d) Mumbai

Answer : C

Question. The fire shown below started in a factory due to a leaking petroleum product. Where the stream from the fire extinguisher should be directed?

 ""CBSE-Class-9-Science-Natural-Resources-Worksheet-Set-A-2

(a) A
(b) B
(c) C
(d) D

Answer : C

Question. Given below is a list of household waste. The list has been put under 2 headings. One item in the list has been put under the WRONG heading.  Identify it.

 ""CBSE-Class-9-Science-Natural-Resources-Worksheet-Set-A-3

(a) Glass bottle
(b) Leaves
(c) Polythene bags
(d) Tin cans

Answer : A

Question. According to a recent newspaper report, environmentalists are fighting for use of diesel having lower sulphur content. Why?
(a) Manufacture of sulphur is a highly polluting process
(b) Sulphur dioxide in the exhaust of these vehicles is a major air pollutant
(c) Diesel having sulphur harms the engine and the driver's health
(d) Sulphuric acid is produced in the engine of these vehicles

Answer : B

Question. The contour map of a hilly region shown in the figure below does not show a river that actually flows through it. Which of these arrows could be representing the position and direction of the river correctly?

 ""CBSE-Class-9-Science-Natural-Resources-Worksheet-Set-A-4

Answer : B

Question. From the above graphic, it appears that an appropriate definition for the Carbon Cycle may be:
Study the illustration representing the Carbon Cycle and answer the question

 ""CBSE-Class-9-Science-Natural-Resources-Worksheet-Set-A-5

(a) the various natural and man-made processes that release carbon dioxide into the atmosphere
(b) a complex series of interactions by which carbon passes through the air, water, land and living things
(c) the process by which water travels in a sequence from the air to the Earth and returns to the atmosphere
(d) the evaporation, condensation and precipitation of carbon dioxide in the Earth's eco-system

Answer : B

Question. All the processes listed below RELEASE carbon dioxide, except one. Identify the one that does NOT release carbon dioxide.
Study the illustration representing the Carbon Cycle and answer the question

 ""CBSE-Class-9-Science-Natural-Resources-Worksheet-Set-A-6

(a) Photosynthesis
(b) Burning of wood
(c) Respiration
(d) Organic decomposition

Answer : A

Question. Which type of soil do the particles shown in the figure belong to?(Use the scale given in the photograph)

Gravel Sand Silt Clay
> 2 mm 0.05 - 2 mm 0.005 - 0.005 mm < 0.005 mm

 ""CBSE-Class-9-Science-Natural-Resources-Worksheet-Set-A-7

(a) Gravel
(b) Sand
(c) Slit
(d) clay

Answer : B

Question. All the GIVEN steps aim at
1. Reduce automobile usage : take public transportation, ride a bike, or walk when possible.
2. Save energy switch off eletrical appliances when not needed
3. Plant trees
4. Recycle
(a) reducing global warming
(b) reducing green coverage
(c) increasing power supply
(d) reducing the ozone layer

Answer : A

Question. Which of these meshes would allow FINE SAND through but not COARSE SAND?
(a) Size 20
(b) Size 50
(c) Size 100
(d) Size 200

Answer : B

Question. An animal census in Mudhumalai Wildlife Sanctuary revealed that there were about 2,000 elephants, 40 tigers, 200 sloth bears, 13,000 deer and more than 40,000 miscellaneous animals in these jungles. Which is the best method of representing this data in a meaningful way?
(a) table
(b) a pie chart
(c) a line graph
(d) a Venn diagram

Answer : A

Question. Identify P,Q and R in this representation of the Rock Cycle

""CBSE-Class-9-Science-Natural-Resources-Worksheet-Set-A-8

(a) A
(b) B
(c) C
(d) D

Answer : A

 

Very Short Answer Type Questions

Question : What are the basic requirements of all life forms on the earth? 
Answer : The earth and the energy from the sun are the necessary basic requirements of all life forms on the Earth.
 
Question : How much percentage of water covers the earth’s surface? 
Answer : 75 % water covers the earth’s surface.
 
Question : What is lithosphere? 
Answer : The outer crust of the earth is called lithosphere.
 
Question : What is atmosphere? 
Answer : The atmosphere is made up of a mixture of gases, mostly nitrogen, oxygen, argon and carbon dioxide.
 
Question : How can we decide the rainfall patterns?
Answer : Rainfall patterns are decided by the prevailing wind patterns.
 
Question : What are the different states in which water is found during the water cycle?
Answer : During the water cycle, water is found in solid state (snow, ice. etc.), liquid state (ground water, river water, etc.) and gaseous state (water vapours).
 
Question : Name two biologically important compounds that contain both oxygen and nitrogen.
Answer : The biologically important compounds that contain both oxygen and nitrogen are nitrates (NO2) and nitrates (NO3).
 
Question : What is the major source of freshwater in the city/town/village where you live?
Answer : Underground water is the major source of water in city/town/village,. It is drawn with the help of hand pumps and tubewells.
The other nearby sources are rivers, lakes and ponds.
 
Question : What is soil erosion?
Answer : Removal of top layer soil is known as soil erosion. It is rich in humus and nutrients. The agents of soil erosion are mainly flowing water or wind. Land becomes infertile if this process occurs for long time and the reason for the same is the loss of its valuable nutrients.
 

Short Answer Type Questions

Question : How is our atmosphere different from the atmosphere on Venus and Mars?
Answer : The main difference is the composition of both the atmosphere. The atmosphere of Earth contains a mixture of many gases like nitrogen (78.08%), oxygen (20.95%), carbon dioxide (0.03%) and water vapour (in varying proportion). On the other hand, the atmosphere on Venus and Mars mainly contains carbon dioxide. i.e., about 95-97%. It may be the reason that there are no life in the existence in both Venus and Mars.
 
Question : How does the atmosphere act as a blanket?
Answer : The atmosphere acts as a blanket by performing the following functions:
(a) It keeps the average temperature of the Earth fairly constant during day time and even during the course of whole year.
(b) It prevents a sudden increase in the temperature during day time.
(c) It slows down the escape of heat from the surface of the Earth into outer space during night time.
 
Question : What causes winds?
Answer : Unequal heating of atmospheric air generates the winds.. The heat causes rising up of air along with water vapour. As the air rises, it expands and cools. This cooling causes the water vapour in the air to condense. The condensation of water occurs if some particles (like dust particles) act as the ‘nucleus’ for these drops to stick around. These tiny droplets grow bigger by more and more condensation of other water droplets and finally form the clouds.
 
Question : How are clouds formed?
Answer : During the day time, water evaporates from water bodies and goes into the atmosphere.
Air also becomes hot due to sunlight and starts rising up taking along with water vapour.
As the air rises up, it expands and cools.
This cooling of air causes water vapour in the air to condense. The process of condensation of water occurs. Small droplets grow and become big by more and more condensation of other droplets of water.
These steps form the clouds.
 
Question : List any three human activities that you think would lead to air pollution.
Answer : The following activities lead to air pollution:
Excessive burning of fossil fuels, i.e., coal and petroleum produces high amount of oxides of nitrogen and sulphur.
Many industries release high amount of poisonous gases into the atmosphere causing air pollution.
 
Question : Why do organisms need water?
Answer : Organisms need water because:
Substances dissolve in water for reactions to take place Cellular processes need water for their functioning.
Transportation of substances within the body needs water.
Water helps in digestion of food and its absorption in the blood.
It helps to maintain body temperature.
 
 
Question : Do you know of any activity which may be polluting this water source?
Answer : The activities which may be polluting the water bodies are:
Disposal of garbage or sewage from cities/towns and from factories.
Release of hot water from the industries which may disturb the temperature of water body by disturbing the BOD.
 
Question : How is soil formed?
Answer : The formation of soil takes place in the following ways:
Rocks near the surface of Earth are broken down by various physical, chemical and some biological processes. This process takes millions of years.
This weathering leads to the formation of fine particles called soil.
There are some other factors responsible to the formation of soil.
These are:
Cracking and breaking down of rocks by sun heat that causes them into small particles.
Water dissolves rocks by freezing and fast flowing.
Wind causes erosion of rocks by fast blowing.
Lichens and mosses grow on rock surfaces and break them into powder down and form a thin layer of soil.
 
 
Question : What are the methods of preventing or reducing soil erosion?
Answer : Preventive methods of soil erosion are as follows:
Afforestation
Contour Ploughing
Step (terrace) Farming
Soil Cover
Overgrazing
 
 
Question : List any three human activities which would lead to an increase in the carbon dioxide content of air.
Answer : The human activities which would lead to an increase in CO2 content of air are;
Deforestation increases the level of CO2 in the environment.
Respiration is the natural way to release of CO2 by plants. It is balanced by the release of oxygen by plants. So, it is not harmful for the environment.
Combustion of Fuels leads to increase in CO2 level in the atmosphere.
Fuels are burnt to carryout activities like cooking, transportation and in industrial processes.
 
Question : What is the greenhouse effect?
Answer : Some gases like carbon dioxide, methane, nitrous oxide prevent the escape of heat from the Earth's surface by trapping it. This increases the average temperature of the Earth.
This is called the green house effect. An increase in the content of such gases would lead to a situation of global warming.
 
Question : What are the two forms of oxygen found in the atmosphere?
Answer : The two forms of oxygen found in the atmosphere are;
Elemental oxygen is normally found in the form of diatomic molecule (O2) in the lower part of atmosphere. It is about 21% in the air and nonpoisonous.
Ozone is found in the stratosphere part of atmosphere. It contains three atoms of oxygen (O3).
 
Exercises
 
Question : Why is the atmosphere essential for life?
Answer : Atmosphere is essential for life due to following reasons:
It maintains the appropriate climate for the sustain of life It keeps the average temperature of the Earth steady during the day and even throughout the year.
It prevents the sudden increases in temperature during the daylight hours.
The gases it contains are required for sustaining life on Earth. These gases are:
o Oxygen , Carbon dioxide and Nitrogen
A thick layer of ozone (in stratosphere) of atmosphere filters the harmful UV radiations reaching the Earth. The UV rays produce harmful effects on all living organisms. 
 
Question : Why is water essential for life?
Answer : Water is essential for life because of these reasons:
It provides medium to carry out all the cellular processes.
All the reactions that occur in our body and within cells occur between substances that are dissolved in water.
It is required for the transportation of materials from one part of the body to the other.
lt helps to maintain body temperature.
Water makes up about 7o % of body weight of all the living organisms.
 
Question : How are living organisms dependent on soil? Are organisms that live in water totally independent of soil as a resource?
Answer : iving organisms depend on soil in the following ways:
Soil helps to bind the roots of plants to provide them anchorage. The nutrients in soil are absorbed by the plants for their growth and development.
It provides natural habitat for various living organisms, e.g., bacteria, fungi, algae, earthworms, etc. These help to maintain the fertility of soil.
Many animals like rats, rabbits, etc., make their home in the soil.
Earthworm performs all its activities in the soil. It maintains the fertility of soil by releasing nitrogen rich excreta.
Organisms that live in water are not totally independent of soil as a resource. These organisms depend on aquatic plants for food and other substances These aquatic plants in turn require minerals for their sustenance These minerals are carried to water bodies from soil by rivers, rain water, etc. without the supply of minerals from the soil to the water bodies, it is impossible to imagine aquatic life. 
 
Question : You have seen weather reports on television and in newspapers. How, do you think we are able to predict the weather?
Answer : Meteorologists collect information regarding the pattern of temperature, speed of wind, air presser and all other features which influence weather. All these information are collected by remote sensing and weather forecast satellites. This information is then compiled in meterological departments which prepare a weather report that is displayed on the maps. This information is further transmitted through radio, television and newspaper.
 
Question : We know that many human activities lead to increasing levels of pollution of the air, water-bodies and soil. Do you think that isolating these activities to specific and Limited areas would help in reducing pollution?
Answer : Yes. Isolating human activities to specific areas would help in reducing levels of pollution. For example, setting up of industries in isolated regions will control pollution to some extent. The pollution caused by these industries will not contaminate water resources, agriculture land, fertile land, etc.
 
Question : Write a note on how forests influence the quality of our air, soil and water resources.
Answer : Forests influence the quality of air, soil and water resources in the ways as below:
 
A. Influence of forests on air :
Forests help to maintain oxygen and carbon dioxide balance in the air, They reduce the level of CO2 in the air and to prevent greenhouse effect.
These maintain temperature of the environment, Forests increase the rate of photosynthesis in surrounding region.
 
B. Influence of forests in quality of soil:
Trees spread their roots deep inside the Earth and bind the soil particles firmly. This reduces soil erosion.
Forests help to maintain nutrient cycles (biogeochemical cycles) in the atmosphere.
 
C. Influence of forests in quality of water:
Water cycle will be maintained by the help of trees Forests conserve water and make them available on the surface of Earth as water sources.  
 

Click below to download practice worksheet for CBSE Class 9 Science Natural Resources Worksheet Set A

Chapter 01 Matter in Our Surroundings
CBSE Class 9 Science Matter in Our Surroundings Worksheet Set A
CBSE Class 9 Science Matter in Our Surroundings Worksheet Set B
CBSE Class 9 Science Matter in Our Surroundings Worksheet Set C
CBSE Class 9 Science Matter in Our Surroundings Worksheet Set D
CBSE Class 9 Science Matter in Our Surroundings Worksheet Set E
CBSE Class 9 Science Matter in Our Surroundings Worksheet Set F
CBSE Class 9 Science Matter in Our Surroundings Worksheet Set G
CBSE Class 9 Science Matter in Our Surroundings Worksheet Set H
CBSE Class 9 Science Matter in Our Surroundings Worksheet Set I
Chapter 02 Is Matter Around Us Pure
CBSE Class 9 Science Is Matter Around Us Pure Worksheet Set A
CBSE Class 9 Science Is Matter Around Us Pure Worksheet Set B
CBSE Class 9 Science Is Matter Around Us Pure Worksheet Set C
CBSE Class 9 Science Is Matter Around Us Pure Worksheet Set C
CBSE Class 9 Science Is Matter Around Us Pure Worksheet Set D
CBSE Class 9 Science Is Matter Around Us Pure Worksheet Set D
CBSE Class 9 Science Is Matter Around Us Pure Worksheet Set E
CBSE Class 9 Science Is Matter Around Us Pure Worksheet Set E
CBSE Class 9 Science Is Matter Around Us Pure Worksheet Set F
Chapter 03 Atoms and Molecules
CBSE Class 9 Science Atoms and Molecules Worksheet Set A
CBSE Class 9 Science Atoms and Molecules Worksheet Set B
CBSE Class 9 Science Atoms and Molecules Worksheet Set C
CBSE Class 9 Science Atoms and Molecules Worksheet Set D
CBSE Class 9 Science Atoms and Molecules Worksheet Set E
CBSE Class 9 Science Atoms and Molecules Worksheet Set F
CBSE Class 9 Science Atoms and Molecules Worksheet Set G
CBSE Class 9 Science Atoms and Molecules Worksheet Set H
Chapter 04 Structure of the Atom
CBSE Class 9 Science Structure of The Atom Worksheet Set A
CBSE Class 9 Science Structure of The Atom Worksheet Set B
CBSE Class 9 Science Structure of The Atom Worksheet Set C
CBSE Class 9 Science Structure of The Atom Worksheet Set D
Chapter 05 The Fundamental Unit of Life
CBSE Class 9 Science Fundamental Unit of Life Worksheet Set A
CBSE Class 9 Science Fundamental Unit of Life Worksheet Set B
CBSE Class 9 Science Fundamental Unit of Life Worksheet Set C
CBSE Class 9 Science Fundamental Unit of Life Worksheet Set D
CBSE Class 9 Science Fundamental Unit of Life Worksheet Set E
CBSE Class 9 Science Fundamental Unit of Life Worksheet Set F
CBSE Class 9 Science Fundamental Unit of Life Worksheet Set G
Chapter 06 Tissues
CBSE Class 9 Science Plant Tissues Worksheet Set A
CBSE Class 9 Science Tissue Worksheet Set C
CBSE Class 9 Science Tissue Worksheet Set D
CBSE Class 9 Science Tissue Worksheet Set E
CBSE Class 9 Science Tissue Worksheet Set F
CBSE Class 9 Science Tissues Worksheet Set A
CBSE Class 9 Science Tissues Worksheet Set B
Chapter 07 Diversity In Living Organisms
CBSE Class 9 Science Diversity in Living Organism Worksheet Set A
CBSE Class 9 Science Diversity in Living Organism Worksheet Set B
CBSE Class 9 Science Diversity In Living Organisms Worksheet Set C
CBSE Class 9 Science Diversity In Living Organisms Worksheet Set D
CBSE Class 9 Science Diversity In Living Organisms Worksheet Set E
CBSE Class 9 Science Diversity In Living Organisms Worksheet Set F
Chapter 08 Motion
CBSE Class 9 Science Motion Worksheet Set A
CBSE Class 9 Science Motion Worksheet Set B
CBSE Class 9 Science Motion Worksheet Set C
CBSE Class 9 Science Motion Worksheet Set D
CBSE Class 9 Science Motion Worksheet Set E
CBSE Class 9 Science Motion Worksheet Set F
CBSE Class 9 Science Motion Worksheet Set G
CBSE Class 9 Science Motion Worksheet Set H
CBSE Class 9 Science Motion Worksheet Set I
CBSE Class 9 Science Motion Worksheet Set J
Chapter 09 Force and Laws of Motion
CBSE Class 9 Science Force and Laws of Motion Worksheet Set A
CBSE Class 9 Science Force and Laws of Motion Worksheet Set B
CBSE Class 9 Science Force and Laws of Motion Worksheet Set C
CBSE Class 9 Science Force and Laws of Motion Worksheet Set D
CBSE Class 9 Science Force and Laws of Motion Worksheet Set E
CBSE Class 9 Science Force and Laws of Motion Worksheet Set F
Chapter 10 Gravitation
CBSE Class 9 Science Gravitation Worksheet Set A
CBSE Class 9 Science Gravitation Worksheet Set B
CBSE Class 9 Science Gravitation Worksheet Set C
CBSE Class 9 Science Gravitation Worksheet Set D
Chapter 11 Work and Energy
CBSE Class 9 Science Work and Energy Worksheet Set A
CBSE Class 9 Science Work and Energy Worksheet Set B
Chapter 12 Sound
CBSE Class 9 Science Sound Worksheet Set A
CBSE Class 9 Science Sound Worksheet Set B
Chapter 13 Why Do We Fall Ill
CBSE Class 9 Science Why Do We Fall ill Worksheet Set A
CBSE Class 9 Science Why Do We Fall ill Worksheet Set B
Chapter 14 Natural Resources
CBSE Class 9 Science Natural Resource Worksheet Set C
CBSE Class 9 Science Natural Resource Worksheet Set D
CBSE Class 9 Science Natural Resource Worksheet Set E
CBSE Class 9 Science Natural Resource Worksheet Set F
CBSE Class 9 Science Natural Resources Worksheet Set A
CBSE Class 9 Science Natural Resources Worksheet Set B
Chapter 15 Improvement in Food Resources
CBSE Class 9 Science Improvent in Food Resources Worksheet Set A
CBSE Class 9 Science Improvent in Food Resources Worksheet Set B
z More Worksheets for Class 9 Science
CBSE Class 9 Science Lab Worksheet Different Chemical Changes
CBSE Class 9 Science Lab Worksheet law of Conservation of Mass
CBSE Class 9 Science Lab Worksheet Melting Point of Ice
CBSE Class 9 Science Lab Worksheet Preparation of Mixture and Compound
CBSE Class 9 Science Lab Worksheet Separation of Different Components
CBSE Class 9 Science Lab Worksheet True Solution Colloid Suspension
CBSE Class 9 Science Worksheet Set A
CBSE Class 9 Science Worksheet Set B
CBSE Class 9 Science Worksheet Set C
CBSE Class 9 Science Worksheet Set D
CBSE Class 9 Science Worksheet Set E
CBSE Class 9 Science Worksheet Set F
CBSE Class 9 Science Worksheet Set G
CBSE Class 9 Science Worksheet Set H
CBSE Class 9 Science Worksheet Set I
CBSE Class 9 Science Worksheet Set J
CBSE Class 9 Science Worksheet Set K
CBSE Class 9 Science Worksheet Set L
CBSE Class 9 Science Worksheet Set M Solved
CBSE Class 9 Science Worksheet Set N Solved
CBSE Class 9 Science Worksheet Set O Solved
CBSE Class 9 Science Worksheet Set P Solved
CBSE Class 9 Science Worksheet Set Q Solved
CBSE Class 9 Science Worksheet Set R Solved
CBSE Class 9 Science Worksheet Set S Solved
CBSE Class 9 Science Worksheet Set T Solved

Chapter 14 Natural Resources CBSE Class 9 Science Worksheet

The above practice worksheet for Chapter 14 Natural Resources has been designed as per the current syllabus for Class 9 Science released by CBSE. Students studying in Class 9 can easily download in Pdf format and practice the questions and answers given in the above practice worksheet for Class 9 Science on a daily basis. All the latest practice worksheets with solutions have been developed for Science by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their examinations. Studiestoday is the best portal for Printable Worksheets for Class 9 Science students to get all the latest study material free of cost. Teachers of studiestoday have referred to the NCERT book for Class 9 Science to develop the Science Class 9 worksheet. After solving the questions given in the practice sheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 9 Science designed by our teachers. After solving these you should also refer to Class 9 Science MCQ Test for the same chapter. We have also provided a lot of other Worksheets for Class 9 Science which you can use to further make yourself better in Science.

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