OBJECTIVE LIFE SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Acid rain could lower the pH of rivers and lakes to dangerous levels for aquatic life
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CO2 levels in the atmosphere could increase and contribute to global warming problems
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Plants and animals could become better adapted to living in desert conditions.
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Future generations of humans could have an excess of wood and paper products.
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Detailed explanation-1: -Trees and other plants absorb carbon dioxide from the atmosphere as they grow. This is converted into carbon and stored in the plant’s branches, leaves, trunks, roots and in the soil. When forests are cleared or burnt, stored carbon is released into the atmosphere, mainly as carbon dioxide.
Detailed explanation-2: -Deforestation leads to an increase in the amount of CO2 in the air because the number of trees which consume CO2 is reduced.
Detailed explanation-3: -Cutting down or burning forests releases the carbon stored in their trees and soil, and prevents them from absorbing more CO2 in the future. Since 1850, about 30% of all CO2 emissions have come from deforestation. Deforestation can also have more local climate impacts.