OBJECTIVE FORESTRY

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FORESTRY

SOIL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Read the passage about earthworms.EARTHWORMS:Earthworms are very important for producing healthy, mature soil. Worms speed up humusproduction by eating decaying material. In fact, worms are put into compost piles to help make natural fertilizer for crops. Worms leave holes and tracks in the soil that arefilled with water when it rains. Worms loosenthe top layer of soil making it ideal for thrivingplants.How do earthworms help create organic materialfor healthy soil?
A
Worms eat decaying material and break it intosmaller pieces.
B
Worms dry out the soil by drinking the water inlayers.
C
Worms break up rocks into smaller pieces.
D
Worms help with chemical weathering.
Explanation: 

Detailed explanation-1: -Improve soil structure Another thing that earthworms do is loosen, mix and oxygenate the soil as they burrow channels through. They improve its structure, leaving space for water to be drained away from the surface and stored in the soil.

Detailed explanation-2: -Soil provides a host of crucial services for both people and the planet. Soil puts food on our plates, purifies our water, protects us against flooding and combats drought. It’s also key to tackling climate change as it captures and stores vast amounts of carbon. There is no food security without healthy soils.

Detailed explanation-3: -Earthworms crawl through soil consuming organic matter and in the process break it down (decompose it) and produce worm castings (worm manure), which are rich in nutrients, humus and microorganisms. In this process, earthworms also mix and aerate the soil.

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