Question Bank - Environmental Studies

Here's the question bank on all the environmental studies topics.

Consider the following functions for plant roots:A. To give support to the plantB. To provide humusC. To store foodD. To absorb water and mineralsThe functions of roots are

A.
C and D only
B.
B, C and D
C.
A, C and D
D.
A and B only

Solution:

Explanation:Roots are the underground structures that help in the absorption of water and minerals, provide a proper anchorage to the plant parts, storage of reserve food material (Carrot, Radish), and synthesis of PGR (plant growth regulators).Sometimes roots get modified to perform different functions like Storage of food, respiration, climbing, etc. These types of roots are called modified roots.Examples - prop root of the Banyan tree for providing support, Pneumatophores of Rhizophora, and Mangrove plants for respiration.So, these statements are correct.A. To give support to the plant.C. To store food.D. To absorb water and minerals.

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