Question

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Answer 1

12. instead of using vehicles which cause pollution and global warming , we should prefer walking to go nearby destinations .

9. they are
. Contribute to global warming inturn causing ice caps to melt.
. ozone layer depletion

10. a) carpooling
b) by installing CNG in vehicles
c) by regular servicing of vehicles
d) by reducing the use of vehicles
e) we should travel by foot to go nearby places

Answer 2

Hiii!!!

Here is your answer...

9. First of all we will discuss, what is greenhouse effect??

=> the trapping of radiations that falls on the earth is called green house effect. The greenhouse gases like carbon dioxide, methane, nitrogen dioxide don't allow the radiation to escape back into space.

Now, consequences of greenhouse effect :-

1. Because of greenhouse effect, the temperature of the rises and cause global warming. As the trapped radiation can't escape because of greenhouse gases and the temperature increases.

2. because of the very warm climate the snow and ice of the polar region is melting. As result the sea is overflowing and the sea is flowing it's causing flood.

3. The water of ocean and sea is becoming acidic day by day due to increase in greenhouse gases like carbon dioxide. Carbon dioxide is reacting with ocean water and and forming carbonic acid.

4. We know about ozone layer. Ozone layer don't allow UV (ultraviolet) rays to enter. UV rays are very harmful as it may cause skin cancer and many other skin diseases. The greenhouse gases specially CFCs (chlorofluorocarbons) damage the ozone layer. Therefore causing depletion of ozone layer.

5. As the temperwis rising, it's causing harm to our environment. Many animals, birds and plants are dying and hence effecting the environment.

10. Five ways to reduce greenhouse gases :-

→ plant more and more. We know that plants release oxygen to prepare their food in the proces of photosynthesis and absorb carbon dioxide. As a result if we plant more trees, more carbon dioxide will be absorbed.

→ stop burning trees and fossil fuels. Over past few years, people are burning trees and fossil fuels. Therefore releasing millions of tons of carbon dioxide. So we should stop burning trees and fossil fuels. Not only trees and fossil fus otbere things also as they release lots of carbon dioxide.

→ Use bicycle or walk short destination. If we use car or any other vehicle it will release many gases so we should walk or use bicycles.thus we can reduce greenhouse gases and too get some exercise.

→ We should maintain our vehicles and check it regularly. It will prevent from leaks and fires. We should service our vehicles at least once a year.

→ Turn off lights and fans whenever not needed as the electricity powers these are generated by emmison producing energy plants.

11. Industries can contribute to reduce greenhouse gases by:-

→ by recycling more and more things which can be recycled.

→ using non renewable energy.

→ fuel switching.

12. As I told u before also that we should walk or use bicycle to cover nearby destination. If we use car or any other vehicle instead of walking or using bicycle, it will release many gases which can cause air pollution and ma y other diseases. Whereas cycle don't release any such gases so its better to use bicycle or walking . we will be free from those harmful gases and have a great exercise too.

Hope this helps..!!