Please select a subject first
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What is the difference between the troposphere and the tropopause?
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Write briefly about the layers of the atmosphere
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State any three characteristics of the stratosphere
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How is the presence of the ozone layer essential to preserve life on earth?
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State any three characteristics of the mesosphere.
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Why is the thermosphere important?
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Explain the significance of the earth’s atmosphere.
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This is a picture of a supersonic aircraft.
In which layer of the atmosphere does this airplane normally fly?
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Choose the correct option.
The ozone layer is found between _______ km above the earth’s surface.
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This is a picture of a supersonic aircraft.
This layer of the atmosphere is also known to protect living beings from the harmful rays of the sun. How?
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In your notebooks, draw a diagram showing the layers of the atmosphere. Mark clearly the ozone layer, the height at which a jet plane can fly and also the height up to which birds can fly.
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What is responsible for causing a hole in the ozone layer?
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Imagine that you are an active member of Greenpeace. Write a two-page appeal addressed to the Prime Minister of India stating why you think that increasing the number of vehicles on roads will be disastrous to the nation in the long run.
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Make a collage using pictures or a chart to show the various causes and consequences of global warming.
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Write true or false. Correct the false statement.
‘4 o’clock showers’ are caused by cyclonic rainfall.
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For a week, gather information on the weather conditions of your city using simple instruments or from weather reports published in newspapers. Present this information in a table. One has been done for you here. My observation of the weather for a week.
| Weather Conditions | |||
| Day | Date | Morning | Evening |
| Tuesday | 1.5.2017 | Sunny, clear sky, warm, no rainfall | Cloudy, cold, slight drizzle |
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From the weather report published in your local newspaper, record the time of sunrise and sunset for a month in your notebook, as shown below: My observation of the time of sunrise and sunset for the month of ______ 20, ______
| Date | Time of sunrise | Time of sunset | Calculation of length of the day |
| 10 June 2017 | 5.24 a.m. | 5.51 p.m. | 12 hours and 27 minutes |
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Fill in the blank
__________ are examples of renewable energy resources.
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