Question No. 5 Which one of the following is NOT a consequence of deforestation? O O Increase in the level atmospheric CO2 O Decrease in groundwater level O Increase in rainfall and soil fertility O Soil erosion
Answers
Answer:
O2 increases in the level of atmospheric CO2
Explanation:
Deforestation is the process of clearing out the vegitation in a particular area. As we know plants controls the CO2 and the O2 balance in the atmosphere, so deforestaton would lead to the reduction in the no of trees and in-tern hamper the balance.
Oxygen reaches groundwater level through wind action and direct exposure to air. Whereas deforestation is the process of cutting down trees.Hence Deforestation would not directly impact O2 levels in ground water
Plants and forests are essential for soil fertility and the amount of rainfall in a particular area. Plants release important minerals and chemicals like phosphorus and sulphur which contributes to soil fertility. Plant processes like photosynthesis and transpiration others are essential in keeping the water balance in our climate. It is seen that places bearing rainforest has more rainfall than places that do not have forest
Soil erosion is the process where the soil is naturally carried off by agents like wind and water. The roots of trees are essential as they hold the soil together and hence prevent soil erosion. Deforestation would therefore increase soil erosion of a place.
Therefore summarizing all the points Deforestation would decrease O2 in the level of atmospheric CO2 rather than increase the level.