First slide

Soil as Reservoir of Essential Elements

Question

Soil plays an important role in plants growth and development by:
a- Supplying essential mineral elements
b- Holding water around the roots
c- Providing habitat to various nitrogen fixing microbes
d- Providing oxygen to roots

Easy

A

a, b and c only
B

a, b and d only
C

b, c and d only
D

a, b, c and d

Solution

Soil consists of a wide variety of substances. Soil not only supplies minerals but also harbours nitrogen-fixing bacteria, other microbes, holds water, supplies air to the roots and acts as a matrix that stabilises the plant.

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