Q 1. a(1 Point) What is environmentaliat\'s paradox b (2 Points) What is the con
ID: 140667 • Letter: Q
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Q 1. a(1 Point) What is environmentaliat's paradox b (2 Points) What is the concept of ecosystem? What ane the signs of declining ecosysem C. (2 Points) Disouss the effect of cartion dloxide emission on the climate change 02 a (3 Points) What are the three types of wealth of a nation? Explain biety each one of b. (2 Poines) What are the two commonly used indicators to measure the progress of nation? What do those c (2 Points) identify the three steps involved in developing environmental public policy in the two indicators involve? Unted States of America Q3 a (2 Poin) What is a biogeochemical cycle? Give examples b (3 Points) Discuss the carbon cycle and include picture from the internet in your answer Q 4 a (3 Points) What are the three different ways the populations of different species iving together in a biotic community inberact? Provide example for each b, (3 Points) What is the theory of plate tectonics? What happens when adjacent tectonic plates move with respect to each other? Q 5. a (3 Points) Humans have destroyed the ecosystem. Do you agree with the Why or why not? b (5 Points) What are different ways can be used to restore the ecosystem?Explanation / Answer
Ans. 1(a)
Paradox is a self contradictory statement which seems untrue but when tested is found true. A environmentalist's paradox is why despite of declining ecosystem human beings are improving. Except human beings, all organisms are declining with decline ofecosystem. But human beings are exception.
Ans.1(b)
Ecosystem is a combination of biotic factors like living organisms and abiotic factors like air, water, soil etc. affecting biotic factors. Ecosystem is declined mainly due to air pollution, land pollution, increase in Carbon dioxide concentration, biotic factors like introduction of exotic species. It can be easily visualized by decrease in population of inhabitant species.
Ans. 1(c)
Carbon dioxide is a type of green house gases. A greenhouse gas is a gas which absorbs radiations in visible region but emits radiations in infrared region. This causes increase in temperature. Carbon dioxide is responsible for increase in temperature and is one of the causes of global warming which would adversely affect life on Earth.
Ans. 2(a)
Wealth of a nation is basically of three types
Natural resources which include renewable resources like wind, water, solar energy and non renewable resources like coal, crude oil, etc. Renewable sources don't exhaust easily and are renewed at high rate while non renewable resources are limited and can be renewd, if , over a very long period.
Machines and other technical tools form materialistic wealth of a nation. Better the technology, better is the development of a nation. Machines form a integral part of human life. Work can be done in seconds with the help of machines.
Human resources is most important wealth of a nation. It can be measured by geographical dividend. More the population of youth as compared to old aged persons, greater is the geographical dividend.
Ans. 2(b)
Two main indicators of development of a country are Human Development Index (HDI) and Physical Quality of Life Index (PQLI). HDI measures social life of human and include life expectancy, adult literacy rate and GDP per capita. It is weighed on scale from 0 to 1. It is realeased by United Nations Development Program. PQLI measures infant mortality and is weighted on scale from 0 to 100.
Ans. 2(c)
While developing environmental policy, we must consider following points:
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