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What is ozone hole or depletion of ozone layer?
Ozone depletion is the thining of the ozone layer due to the chemicals like CFCs.The layer is completely depleted and holes are created in some regions like the Antarctic. These holes are called ozone holes.
Prepare a brief speech on global warming. You have to deliver the speech in your class.
Describe the threat to the beauty of the Taj Mahal.
Why does the increased level of nutrients in the water affect the survival of aquatic organisms?
What are the main causes of smoke?
Which problem arises by air pollution?
What is pollution?
What is air pollution?
Which gases are released by vehicles?
Which gas reduces the capacity of the blood to carry oxygen?
What is smog?
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Mock Test Series
