ECOLOGY
ENVIRONMENTAL ISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are a natural barrier against invaders
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They help people trade back and forth
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They provide minerals for the economy.
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They don’t stop people from living there.
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Detailed explanation-1: -Mountains are the world’s “water towers, ” providing 60-80% of all freshwater resources for our planet. At least half of the world’s population depends on mountain ecosystem services to survive – not only water but also food and clean energy.
Detailed explanation-2: -Mountains can have a significant effect on rainfall. When air reaches the mountains, it is forced to rise over this barrier. As the air moves up the windward side of a mountain, it cools, and the volume decreases. As a result, humidity increases and orographic clouds and precipitation can develop.
Detailed explanation-3: -Generally, hills or mountains act as barriers to southwest monsoon and that is why rainfall takes place in most of the parts of India. Aravalli Hills is lying parallel to the direction of flow of the Southwest Monsoon and that is why it cannot act as a barrier to the southwest monsoon.
Detailed explanation-4: -Mountains, swamps, deserts and ice fields are among the clearest examples of natural barriers.