Explain how the ozone layer forms? and the consequences of the destruction of the ozon layer.

Explanation:

The atmospheric oxygen first combines with UV light of the sun and splits to form single atoms of oxygen.

- These single atom oxygen combines with atmospheric oxygen to form O3 molecules i.e. Ozone

O2 + UV -> O + O

O2 +O ->  O3 (Ozone)

Overall reaction: 3O2 ---sunlight>  2O3

This forms a thin layer around earth's surface and protects the earth from harmful radiations from the sun.

Consequence of destruction of ozone layer-

Ozone layer is rapidly being depleted by the presence of pollutants in the atmosphere.

As a result there will be less protection from the harmful UV light of the sun.

UVB causes diseases like skin cancer and development of malignant meloma. In addition, UVB has been associated  to the formation of cataracts, a clouding of the eye’s lens.

Hope you could get an idea from here.

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answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.

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