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प्रश्न
Define the term Global warming.
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उत्तर
Global warming : An increase in the percentage of carbon dioxide, methane, nitrous oxide and chlorofluorocarbon traps the heat causing the temperature of the earth and its surroundings to rise. This is known as global warming.
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संबंधित प्रश्न
Statement given below is incorrect. Write the correct statement :
During thunder and lightning, nitrogen and oxygen combine to form nitrogen dioxide gas.
Name and briefly explain four ways by which pollution of air caused by humans is minimised.
Fill in the blank
Green plants need ________________to prepare food.
With the help of a labeled diagram, describe a simple experiment to show the presence of oxygen and nitrogen in air using a piece of white phosphorus.
Name the following:
The product formed when phosphorus burns in oxygen.
Name the following:
The component of air which does not support combustion.
Give word equation for the following conversion:
Nitrogen dioxide to nitric acid
Why do traffic assistants wear a mask on duty?
The composition of air changes slightly from place to place. Give examples.
Carbon dioxide gas is ______ in nature.
