CBSE Class 9 OTBA Science Sample Question Paper

Science
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Read and download PDF of CBSE Class 9 OTBA Science Sample Question Paper designed as per the latest curriculum and examination pattern for Class 9 issued by CBSE, NCERT and KVS. The latest Class 9 Science Sample Papers have been provided with solutions so that the students can solve these practice papers and then compare their answers. This will help them to identify mistakes and improvement areas in Science Class 9 which they need to study more to get better marks in Class 9 exams. After solving these guess papers also refer to solved Class 9 Science Question Papers available on our website to build strong understanding of the subject

Sample Paper for Class 9 Science Pdf

Students can refer to the below Class 9 Science Sample Paper designed to help students understand the pattern of questions that will be asked in Class 9 exams. Please download CBSE Class 9 OTBA Science Sample Question Paper

Science Class 9 Sample Paper

 

Answer the following 
 
1 Name the conditions of the atmosphere that provides excellent conditions to support and sustain life.
A The atmosphere comprising of mainly Nitrogen, Oxygen, Carbon dioxide and water vapour provides excellent conditions to support and sustain life.
 
2 What are pollutants?
A The undesired components which contaminate air are called pollutants.
 
3 Name the gas that is necessary for the survival of life on earth.
A Carbon dioxide is necessary for the survival of life on earth.
 
4 `Name the phenomenon that is essential to maintain and keep the earth’s atmosphere warm.
A Photosynthesis
 
5 What is the cause for the depletion of ozone layer?
A The use of refrigerators and air conditioners, fire extinguishers, aerosol sprays like deodorants etc. results in release of CFCs and N2O in the atmosphere which is responsible for depletion of ozone layer
 
6 Give the consequences of depletion of ozone layer
A UV radiations enter into the atmosphere causing damage to all kinds of life on earth.
 
7 What is NAMP?
A NAMP stands for National Air Quality Monitoring Programmer.
 
8 What is the significance of PM10?
A PM10 is the term used to describe tiny particles in the air, made up of a complex mixture of soot, organic and inorganic materials having particle size less than or equal to 10 microns diameter(10 microns is equal to one hundredth part of a millimeter)
 
9 What do PTI and IST stand for?
A Press Trust of India, and Indian Standard Time
 
10 What is the place of Air pollution in taking lives of people in India?
A Air pollution is the fifth largest killer in India taking 6.2 lakh lives per year.

 Answer the following 

1 Name the five most critically polluted regions in the country.
A Delhi, Ghaziabad, Gwalior, West Singbhum district in Jharkhand and Raipur are the five most critically polluted regions in the country.
 
2 How acid rain is is formed?
A The oxides of sulphur, carbon, and nitrogen released into the atmosphere from chimneys of Industries and exhaust of vehicles react with water of the rains and oxygen from air to form acids. Dissolved acids make the rain acidic in nature.
 
3 What is the affect of acid rains on the environment?
A Acid rains are very harmful for both, living and nonliving things. Acid rains damage crops, pollute soil and water, ruin the harvest, damage aquatic life and erode buildings.
 
4 Name the undesirable components which contaminate and cause air pollution
A The harmful Ozone in the lower atmosphere, Carbon monoxide, Nitrogen dioxide,Solid or liquid matter that is suspended in the air, Sulfur dioxide, Lead,Arsenic,asbestos, benzene and dioxin, Green House gasses Carbon dioxide methane and nitrous oxide are the components which cause air pollution.
 
5 What is the effect of carbon monoxide on the life on earth?
A • It makes the body parts hard to get the necessary oxygen
• More exposure makes people feel dizzy and tired
• High concentrations is fatal
People suffering from heart disease are hospitalized more often.
 
6 What is the importance of Earth Day? When is it celebrated
A To give awareness to the people towards keeping the planet Earth non polluted, Earth Day is celebrated on April 22 every year.
 
7 What is Global warming?
A Increase in the levels of CO2 due to excessive burning of fossil fuels and other carbon containing fuels which results in excessive heating of the earth’s surface is called Global Warming. 
 
8 What are the greenhouse gases present in the earth’s atmosphere in their order of abundance in the atmosphere
A Water vapour, Carbon dioxide, methane, nitrous oxide, ozone, chlorofluorocarbons. 
 
9 What made the Governments of different nations take up the problem of air pollution to a central stage? 
A Smog which surrounded the city of London in the year 1952 resulted in the loss of about 4000 human lives and many others suffering from serious breathing problems .This made Governments of different nations to take-up the problem of air pollution to a central stage. 
 
10 Visibility is very low during winters. Why?
A Smog is a mixture of smoke dust particles and fog. The smoke emitted from the exhaust of the vehicles settles over fog in winter and reduces the visibility 
 
11 What is the effect of Air toxics on the Human beings?
A Air toxics can impair lung function and neurodevelopment, or aggravate existing conditions, such as asthma. Infants who were born premature or growth-retarded may be particularly vulnerable to additional environmental affects.. 
 
12 From picture no. 5 name the diseases affecting children of 0 to 5 years.
A Diseases affecting children in the age from 0 to 5 years are High respiratory rate, Respiratory death cough bronchitis wheeze and ear infections 
 
13 From picture no 5 name the diseases affecting children of 6 to 12 years.
A Chronic cough and bronchitis, Reduced lung function, wheezing and asthma attacks,.

 

Please refer to attached file for CBSE Class 9 OTBA Science Sample Question Paper

Sample Papers for Class 9 Science
CBSE Class 9 Chemistry Sample Paper Set A
CBSE Class 9 OTBA Chemistry Sample Question Paper
CBSE Class 9 OTBA Physics Sample Question Paper
CBSE Class 9 OTBA Science Sample Question Paper
CBSE Class 9 Science OTBA Guidance issued by CBSE
CBSE Class 9 Science Practicals Sample Paper 1
CBSE Class 9 Science Practicals Sample Paper 2
CBSE Class 9 Science Practicals Sample Paper 3
CBSE Class 9 Science Sample Paper A
CBSE Class 9 Science Sample Paper B
CBSE Class 9 Science Sample Paper C
CBSE Class 9 Science Sample Paper D
CBSE Class 9 Science Sample Paper E
CBSE Class 9 Science Sample Paper F
CBSE Class 9 Science Sample Paper G
CBSE Class 9 Science Sample Paper H
CBSE Class 9 Science Sample Paper I
CBSE Class 9 Science Sample Paper J
CBSE Class 9 Science Sample Paper K Solved
CBSE Class 9 Science Sample Paper L
CBSE Class 9 Science Sample Paper M Solved
CBSE Class 9 Science Sample Paper N
CBSE Class 9 Science Sample Paper O Solved
CBSE Class 9 Science Sample Paper P Solved
CBSE Class 9 Science Sample Paper Q Solved
CBSE Class 9 Science Sample Paper R Solved
CBSE Class 9 Science Sample Paper S
CBSE Class 9 Science Sample Paper Set 1
CBSE Class 9 Science Sample Paper Set 2
CBSE Class 9 Science Sample Paper Set 3
CBSE Class 9 Science Sample Paper Set 4
CBSE Class 9 Science Sample Paper Set 5
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CBSE Class 9 Science Sample Paper Set 7
CBSE Class 9 Science Sample Paper Set 8
CBSE Class 9 Science Sample Paper Set 9
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CBSE Class 9 Science Sample Paper Set 11
CBSE Class 9 Science Sample Paper Set 12
CBSE Class 9 Science Sample Paper Set 13
CBSE Class 9 Science Sample Paper Set 14
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CBSE Class 9 Science Sample Paper Set 18
CBSE Class 9 Science Sample Paper Set 19
CBSE Class 9 Science Sample Paper Set 20
CBSE Class 9 Science Sample Paper Set 21 with Answers
CBSE Class 9 Science Sample Paper Set 22 with Answers
CBSE Class 9 Science Sample Paper Set 23 with Answers
CBSE Class 9 Science Sample Paper Set 24
CBSE Class 9 Science Sample Paper Set 25
CBSE Class 9 Science Sample Paper Set A
CBSE Class 9 Science Sample Paper Set B
CBSE Class 9 Science Sample Paper Set C
CBSE Class 9 Science Sample Paper Set D
CBSE Class 9 Science Sample Paper Set E
CBSE Class 9 Science Sample Paper Set F
CBSE Class 9 Science Sample Paper Set G
CBSE Class 9 Science Sample Paper Set H
CBSE Class 9 Science Sample Paper Set I
CBSE Class 9 Science Sample Paper Set J
CBSE Class 9 Science Sample Paper Set K
CBSE Class 9 Science Sample Paper Set L
CBSE Class 9 Science Sample Paper Set M
CBSE Class 9 Science Sample Paper Set N
CBSE Class 9 Science Sample Paper Set O
CBSE Class 9 Science Sample Paper Set P
CBSE Class 9 Science Sample Paper Set Q
CBSE Class 9 Science Sample Paper Set R
CBSE Class 9 Science Sample Paper Set S
CBSE Class 9 Science Sample Paper Set T
CBSE Class 9 Science Sample Paper Set U
CBSE Class 9 Science Sample Paper Set V
CBSE Class 9 Science Sample Paper Set W
CBSE Class 9 Science Sample Paper Set X
CBSE Class 9 Science Sample Paper Set Y
CBSE Class 9 Science Sample Paper Set Z
CBSE Class 9 Science Sample Paper T
CBSE Class 9 Science Sample Paper Term 1
CBSE Class 9 Science Sample Paper U
CBSE Class 9 Science Sample Paper V
CBSE Class 9 Science Sample Paper W
CBSE Class 9 Science Sample Paper X
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CBSE Class 9 OTBA Science Sample Question Paper

We hope you liked the above provided CBSE Class 9 OTBA Science Sample Question Paper. To get an understanding of the type of questions which were asked in exams, it is important for Class 9 students to understand the way sample Paper are set by teachers. Students can download the Sample Paper for Class 9 Science which will be coming in the exams so that you can practise them and solve all types of questions that can be asked in exams. By doing CBSE Class 9 OTBA Science Sample Question Paper you will understand the regular questions and MCQ questions for Class 9 Science which are always asked. You can download CBSE Class 9 Science Sample Paper and Class 9 Science Question Papers in PDF. You should attempt all the last year question paper for Class 9 and Class 9 Science MCQ Test in examination conditions at home and then compare their answers with the solutions provided by our teachers.

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