EVOLUTION
THE ORIGIN OF LIFE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Detailed explanation-1: -Most plants get their nutrients from the soil and they are the main source of food for humans, animals and birds. Therefore, most living things on land depend on soil for their existence.
Detailed explanation-2: -Soil is a substrate for plants to grow in. Soil provides support, nutrients, and a network of water and air to the plant’s roots. Plants can grow without soil, but they will need structures to support them, the correct amount of water and air to their roots, and ample nutrients.
Detailed explanation-3: -Soil is composed of six horizons. The top-most layer is the organic layer, termed O. Each layer is less and less organic and more rocky in nature as you go down. The layers differ because the top O layer is constantly being added to by decaying organic matter such as leaf litter and dead plant and animal matter.