K K Gupta and Stalin Malhotra Solutions for Chapter: Water-A Precious Resource, Exercise 2: Let's revise

Rain is the major source of water for agriculture in our country.

Water harvesting should be encouraged to conserve water.

Level of the water table at a place remains same throughout the year.

Land without trees helps in better seepage of water.

Groundwater is also called an aquifer.

Read the passage given below:
Drip irrigation, also known as micro-irrigation or trickle irrigation, involves dripping of water onto the soil at a very slow rate. Since the level of water is depleting worldwide, in recent years the demand for drip irrigation has grown rapidly. It has become an important method in the field of agriculture. In this system, water is allowed to drip slowly to the plant roots either onto the soil or to the root zone through a network of valves, pipes, tubing and emitters or drippers. Drip irrigation helps in the intelligent use of water, fertilizers and chemicals. It has decreased water and labour costs and is also energy-efficient. It has improved the quality of the environment too.
Which of the following statement regarding drip irrigation is not true?

Mr. Gupta is the president of his colony. He does not allow people to remove grass and plants and make the land concrete as this would adversely affect the water table. In meetings he explains the importance of green areas for increasing the water table and the ill-effects of making land concreted.

What value does Mr Gupta exhibit?

Plants are called _____ in a food chain. (consumers/ producers)