ECOLOGY
ENVIRONMENTAL ISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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set up clean-up campaigns along the rivers
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replant trees along the rivers
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monitor what industries do with their wastes materials
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regulate pollution from industry
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Detailed explanation-1: -Water retention by forests affects the amount and timing of the water delivered to streams and groundwater by increasing and maintaining infiltration and storage capacity of the soil. Forests can soak up excess rainwater, preventing run-offs and damage from flooding.
Detailed explanation-2: -Flood control infrastructure, such as levees, dams, seawalls, and tide gates, work as physical barriers to prevent rising or running water from causing flooding. Other measures, such as pump stations and channels, help reduce flooding.
Detailed explanation-3: -These methods include planting vegetation to retain excess water, terrace slopes to reduce slope flow, and building alluviums (man-made channels to divert water from flooding), construction of dykes, dams, reservoirs or holding tanks to store extra water during flood periods.
Detailed explanation-4: -Mangrove, giant bamboo and bitaog trees play an important role in recuding flooding. The roots of a giant bamboo absorb excess water and hold the soil together, which mitigates soil erosion and landslides.