What is an example of a clean water ecosystem?
(A) Beach
(B) Gulf
(C) Eschury
(D) Pond
Soil erosion can be prevented?
(A) excessive grazing of animals
(B) by cutting of vegetation
(C) by afforestation
(D) increasing the population of birds
Soil erosion is a serious environmental problem. Steps should be taken to curb this problem. Following are some ways to prevent soil erosion:
1. Plant trees on barren lands to prevent soil erosion.
2. Add mulch and rocks to trap plants and grass beneath to prevent soil erosion.
3. Mulch matting can be used to reduce erosion on slopes.
4. Place a series of fiber logs to prevent any water or soil from flowing away.
5. A wall at the base of a slope can help prevent soil erosion.
6. Every house should have proper drainage system so that water can flow into proper water collection systems.
7. Afforestation is the planting of trees on a large scale to check soil erosion.
Which is the basis of interactions between plants and animals of an ecosystem?
(A) producer
(B) nutritional relationship
(C) energy flow
(D) decomposers
The autotrophic components of an ecosystem are?
(A) Microorganisms
(B) Predator
(C) Plant
(D) mortal
Which is the world's most famous insecticide?
(A) D.D.T.
(B) B.H.C.
(C) Flit
(D) Begoun
What is the biological component of environment and ecology?
(A) Soil
(B) water
(C) Air
(D) Vegetation
What is the study of interactions between organisms and their environment called?
(A) Life Sciences
(B) Biogeography
(C) Physics
(D) Ecology
Who has been made to help the countries most affected by climate change?
(A) Green Climate Fund
(B) Climate Relief Fund
(C) Green Bank
(D) World Green Fund
There is a lot of moisture and water in the mountains. Why are there still dead here?
(A) Water turns into ice on the mountains
(B) The water gets carried away due to slopes and is not used by the plants.
(C) Rocks of mountains cannot absorb water.
(D) None of the above.
What is an example of an artificial ecosystem?
(A) coral reef
(B) Wetland
(C) farm
(D) river
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