Q1 of 37 Page 115

Prepare a list of five items that you use daily in the school. Identify from the list such items that can be recycled.

The five items which are used in schools and can be recycled are paper, plastic water bottle, school bags made up of cotton, plastic lunch boxes and pencils. Since paper, cotton, plastic and wood obtained from pencils can be recycled again and again and can be used.


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23

Select the eco-friendly activity among the following

 24

It is important to make small check dams across the flooded gullies because they

i. hold water for irrigation


ii. hold water and prevent soil erosion


iii. recharge ground water


iv. hold water permanently

 2

List two advantages associated with water harvesting at the community level.

 3

In a village in Karnataka, people started cultivating crops all around a lake which was always filled with water. They added fertilizers to their field in order to enhance the yield. Soon they discovered that the water body was completely covered with green floating plants and fishes started dying in large numbers. Analyses the situation and give reasons for excessive growth of plants and death of fish in the lake.