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Answers
Explanation:
Q1.
Answer- Groundwater is recharged naturally by rain and snow melt and to a smaller extent by surface water (rivers and lakes). ... Recharge can help move excess salts that accumulate in the root zone to deeper soil layers, or into the groundwater system. Tree roots increase water saturation into groundwater reducing water runoff.
Q2
Answer- Holes are made in hanging banners and hoardings so that air can pass through them easily and to reduce the air pressure. If banners and hoardings do not have holes, pressure exerted by wind may tear them off, loosen them or make them fall.
Q3
Ans- Tropical rainforests receive plenty of rainfall and its climate is hot and humid. Due to which it has a variety of flora and fauna and hence, has a large population of animals.