Question

please give all answers of these questions :-

2.What is climate change? Explain how human activities are causing climate change.

3. Which two gases form the bulk of the atmosphere? Explain the importance of each gas.

4. Explain the relationship between temperature, pressure and wind. Support your answer with a simple diagram.

5. Give two reasons why rainfall is important.

6. Why does atmospheric pressure vary from place to place and from time to time?​

Answer 1

Answer:

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Answer 2

Explanation:

1. Burning fossil fuels , releasing chemical into the atmosphere , reducing the amount of forest cover , and the rapid expansion of farming , development , and industrial activities are releasing carbon dioxide into the atmosphere and changing the balance of the climate system.

2. two gases make the bulk are oxygen and nitrogen.

nitrogen

nitrogen in the atmosphere gives protein to the plants in many ways like through rhizobium , lightning strike etc. due to which it grows and gives us it to grow.

Oxygen

oxygen is the most important gas in the atmosphere due to which we respire and live.

4.The wind is the result of a difference of pressure. The air, being fluid, moves from high to low pressure. A seaman’s rule of thumb is, a pressure that falls or rises by 10 millibars in a period 8 hours, is a sure sign that a gale force wind is on its way.

The temperature has a role but it is more difficult to define it because warm air rises over colder one and that process lowers the pressure. But a cold temperature or warm one, in itself, doesn’t play a role.

5. rain is needed for drinking because it can become as a source of fresh water, which is important for the survival of the humans, plants and animals. it it adds water in rivers , lakes and streams where are the animals live. it helps water all the plants and trees on the earth. Rain let us make electricity through hydropower.

6. atmospheric pressure vary from place to place and time to time. this is due to changes in temperature in the quantity of water vapour in the air. The density