KIDS QUIZ
PLANTS AND GARDENING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the purpose of the building the terraces in the garden?
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so they will look pretty
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so that they can grow a large about of crops
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keep the soil from washing downhill with the rains
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to help the soil wash away to make room for new soil
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Explanation:
Detailed explanation-1: -Terracing helps retain soil cover and fertility since water flows do not wash off the topsoil and nutrients.
Detailed explanation-2: -In terrace farming, a terrace is a piece of the sloped plane that is cut into a series of successively receding platforms, that resemble steps. This prevents rain from washing away soil, hence preventing soil erosion. Thus the correct answer is option C.
Detailed explanation-3: -Terraces divide slopes so that surface runoff is intercepted and carried to a protective outlet. Terraces decrease erosion by shortening slope length, slowing runoff velocity, and trapping sediments. Surface runoff water concentrates in waterways that when bare or unstable are extremely erodible.
There is 1 question to complete.