PATHOLOGY MCQ
NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Extreme temperatures cause seeds to break open and allow for plant germination
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Increases air pollution and destroys homes
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Sediment is deposited into the soil and more fertile soil is created
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None of the above
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Detailed explanation-1: -In addition, fire can be rejuvenating. It returns nutrients to the soil in the ashes of vegetation that could otherwise take years to decompose. And after a fire, the additional sunlight and open space in a forest can help young trees and other plants start to grow.
Detailed explanation-2: -Whereas high intensity fires can result into complete loss of soil organic matter, volatilization of N, P, S, K, death of microbes, etc. Intense forest fire results into formation of some organic compounds with hydrophobic properties, which results into high water repellent soils.
Detailed explanation-3: -Successive fires destroy the organic matter that makes soil fertile, causing crop yields to decrease over time and increasing the need for costly fertilizers. Smoke and spreading flames also pose a risk to neighbouring communities, buildings, and fields. Agriculture residues are often a valuable resource worth saving.