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Question
Everyone of us can do something to reduce our personal consumption of various natural resources. List four such activities based on 3-R approach.
Solution
The 3-R strategy is an approach to reduce the amount of solid waste. It stands for reduce, reuse and recycle. Reduce means minimising the use of materials that increase solid waste. Reuse means repeating the use of items with no side effects and recycling means using waste as a resource.
- According to this strategy, the use of non-recyclable substances such as polythene, that are harmful to the environment should be avoided and the use of recyclable resources should be promoted.
- The use of materials such as paper should be preferred, as they can be reused and recycled. Also, they do not cause any harm to the environment when they are disposed of.
- Materials like glass and some plastics can be recycled on heating and converted into different products like toys and containers that can be reused.
- The recycling of electronic waste is done by dismantling the items and reusing their components.
RELATED QUESTIONS
The activities of man had adverse effects on all forms of living organisms in the biosphere. Unlimited exploitation of nature by man disturbed the delicate ecological balance between the living and non-living components of the biosphere. The unfavourable conditions created by man himself threatened the survival not only of himself but also of the entire living organisms on the mother earth. One of your classmates is an active member of 'Eco club' of your school which is creating environmental awareness amongst the school students, spreading the same in the society and also working hard for preventing environmental degradation of the surroundings
List two values exhibited by your classmate who is an active member of Eco-club of your school.
Why does the increased level of nutrients in the water affect the survival of aquatic organisms?
Why is forest considered a natural ecosystem?
Write a short note on 'Chipko Andolan' (Hug the Trees Movement).
What is a natural resource? Name three important natural resources.
The Chipko Andolan is associated with :
(a) Tigers
(b) Turtles
(c) Trees
(d) Tomatoes
In a village, farmers started cultivating crops all around a lake which was always filled with water. They added lot of materials W to the soil in their fields to increase the yield of crops. Soon they found that the whole surface of water in the lake was covered with a green layer made up of tiny organisms X. After some time, the fish present in the lake started dying in large numbers because they could not get sufficient Y due to a process Z which had occurred in lake water and drained out all the Y present in the water of lake.
(a) What do you think materials W are?
(b) Name (i) X, and (ii) Y.
(c) What is the process Z known as?
(d) What happens during the process Z which uses up all the Y present in lake water?
(e) What does this example tell us about the use of materials like W?
Suggest some approaches towards the conservation of forests.
Which plan has been started by the government to control the pollution of Ganga?
Expand the abbreviation GAP
