NCERT Class 11 Geography World Climate and Climate Change
The world climate can be studied by organising information and data on climate and synthesising them in smaller units for easy understanding, description and analysis. Three broad approaches have been adopted for classifying climate. They are empirical, genetic and applied.…
NCERT Class 11 Geography Structure And Physiography
STRUCTURE AND PHYSIOGRAPHY Do you know that our earth also has a history. The earth and its landforms that we see today have evolved over a very long time. Current estimation shows that the earth is approximately 460 million years old. Over these long years, it has undergone…
NCERT Class 11 Geography Natural Hazards And Disasters
NATURAL HAZARDS AND DISASTERS You might have read about tsunami or seen the images of horror on television set immediately after it happened. You may also be aware of the severe earthquake in Kashmir on both sides of theLine of Control (LOC). The damage caused to human life…
NCERT Class 11 Geography Soils
SOILS Have you ever thought about the most important factor which supports trees, grasses, crops and numerous lifeforms over the earth’s surface? Can one grow a blade of grass without soil? While some plants and organisms which are aquatic in nature can sustain in water, do…
NCERT Class 11 Geography Natural Vegetation
NATURAL VEGETATION Have you ever been to a forest for a picnic? You might have surely gone to a park if you live in a city or to a mango, guava or coconut orchard, if you live in a village. How do you differentiate between the natural vegetation and the planted vegetation?…
NCERT Class 11 Geography India Location
INDIA – LOCATION You have already seen the map of India in the previous classes. Now you closely examine the map of India (Figure 1.1). Mark the southernmost and northernmost latitudes and the easternmost and westernmost longitudes. The mainland of India, extends from Kashmir…
NCERT Class 11 Geography World Climate And Climate Change Questions
EXERCISES 1. Multiple choice questions. (i) Which one of the following is suitable for Koeppen’s “A” type of climate?(a) High rainfall in all the months(b) Mean monthly temperature of the coldest month more than freezing point(c) Mean monthly temperature of all the months…
NCERT Class 11 Geography Drainage System
DRAINAGE SYSTEM You have observed water flowing through the rivers, nalas and even channels during rainy season which drain the excess water. Had these channels not been there, large-scale flooding would have occurred. Wherever channels are ill-defined or choked, flooding is a…
NCERT Class 11 Geography Water Oceans
EXERCISES 1. Multiple choice questions.(i) Identify the element which is not a part of the hydrological cycle(a) Evaporation (c) Precipitation(b) Hydration (d) Condensation (ii) The average depth of continental slope varies between(a) 2-20m (c) 20-200m(b) 200-2,000m (d) 2,000-…
NCERT Class 11 Geography Water In The Atmosphere
EXERCISES 1. Multiple choice questions.(i) Which one of the following is the most important constituent of the atmosphere for human beings?(a) Water vapour (c) Dust particle(b) Nitrogen (d) Oxygen (ii) Which one of the following process is responsible for transforming liquid…
NCERT Class 11 Geography The Origin And Evolution Of The Earth
EXERCISES 1. Multiple choice questions.(i) Which one of the following figures represents the age of the earth?(a) 4.6 million years (c) 4.6 billion years(b) 13.7 billion years (d) 13.7 trillion years(ii) Which one of the following has the longest duration?(a) Eons (c) Era(b)…
NCERT Class 11 Geography Climate
CLIMATE We drink more water during summers. Your uniform during the summer is different from the winters. Why do you wear lighter clothes during summers and heavy woollen clothes during winters in north India? In southern India, woollen clothes are not required. In…
NCERT Class 11 Geography Solar Radiation Heat Balance and Temperature
Do you feel air around you? Do you know that we live at the bottom of a huge pile of air? We inhale and exhale but we feel the air when it is in motion. It means air in motion is wind. You have already learnt about the fact that earth is surrounded by air ll around. This…
NCERT Class 11 Geography Weather Instruments Maps and Charts
Weather Instruments, Maps and Charts WEATHER OBSERVATIONS Globally, meteorological observations are recorded at three levels, viz. surface observatories, upper air observatories and space-based observation platforms. The World Meteorological Organization (WMO), a specialised…