The term environment refers to the world where we live and spend our lives. Our environment consists of many living and non-living things, making the environment a living place.
In our environment, many plants and animals give us the material for our livelihood.
Healthy & clean environment
We live in a place that gives us many things for our survival. LIKE oxygen, shelter, and food.
So, it is our duty that keeps this environment smooth and clean. A clean environment will give us many things and give us a chance to live life better.
- Hygiene is a must for our healthy life. It helps in preventing various diseases.
- We also have to maintain proper sanitation by improving the health of our environment.
Three R’s
For a better environment, we consider the three R i.e.
1. Reduce:
- For a better environment, we must not waste any resources.
- Resources are the main things that can make and harm an environment.
2. Recycle:
- We all know the technique of recycling waste material.
- Because when we do the recycling of the waste material, it gets converted into a new useful product.
3. Reuse:
- The term 'reuse' means when we use the same product again.
- We can donate the things to needy people instead of throwing them away.
- We can also use plastic bags to bring our home materials.
Environment and its Conservation Sample Questions for Class 4
Question 1
In a village, a considerable increase in water pollution of the nearby lake was noticed as the farming activity intensified. What could be the reason for this?
A. Use of chemicals to destroy weeds and pests
B. Use of organic manure
C. Excessive use of nitrogen containing fertilizers
D. Both (A) and (C)
Question 2
Which one of the following is the best bioindicator of sulphur dioxide pollution ?
A. Algal blooms
B. Lichens
C. Bacteria
D. None of these
Question 3
Near the equator there is a region which receives heavy rains resulting in very humid conditions. The region is covered with dense forests having rich flora and wildlife with thousands of species. Which of the following regions is being described here ?
A. Tundra
B. Tropical rainforests
C. Polar region
D. Desert
Question 4
"Earth provides enough to satisfy every man's need, but not every man's greed". Who stated this ?
A. Jawaharlal Nehru
B. Subhash Chandra Bose
C. Mahatma Gandhi
D. None of these
Question 5
Runoff water from nearby crop fields enters a small lake. How will it affect the lake ?
A. it will cause the lake of dry up.
B. It will cause algae to grow in the lake.
C. It will cause water in the lake to become solid.
D. None of these