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Motion
How does explosion of population create problems?
Explosion of population causes the following problems:
(i) Due to increase in population there is increase in demand of space, food and other necessities. To meet the demand, forests, fields, hills etc. are used indiscriminately.
(ii) Overpopulation leads to overuse of the resources. The rate of use is much more than the rate of their formation. thus. it depletes the resources.
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What are the two things which are essential for all forms of life on the earth?
What is biosphere?
What are the physical components?
What is biotic component?
Does there exist any relationship between the climate and biotic components? If yes, explain with example.
What percentage of oxygen and nitrogen is present in the air?
Name the pollutants by which industries pollute air.
How is balance of carbon dioxide and oxygen maintained in the environment?
What is the percentage of carbon dioxide in the atmosphere of Venus and Mars?
What are the two main ways in which oxygen is consumed and carbon dioxide is produced?
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