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Cap root
roots help plants grow. Also the roots absorb the nutrence from the soil and transfer the nutrence up to the stem. the roots also grow to find more enriched soil.
Plant roots grow downwards to anchor the plant in the ground. The roots also seek out water and nutrients in the soil.
yes
yes
They form by letting the plants roots grow into the soil which fertilizes the soil.
Monkey nuts grow under the soil.
A plant's roots go as deep as the C Horizon.
10m
yes, they do
there is not enough oxygen
top soil is impotant because with out the soil the roots wont grow and the plant needs roots and soil to become a butiful and good flowr that will last long