Questions by Doubtly

0 votes

1 answer 297 views

What is a good fuel?

asked Dec 12, 2021 in Sources of Energy

0 votes

1 answer 295 views

What is a good source of energy?

asked Dec 12, 2021 in Sources of Energy

0 votes

1 answer 390 views

Why is damage to the ozone layer a cause for concern? What steps are being taken to limit this damage?

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 448 views

If all the waste we generate is biodegradable, will this have no impact on the environment?

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 357 views

What are the problems caused by the non-biodegradable wastes that we generate?

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 384 views

What is biological magnification? Will the levels of this magnification be different at different

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 376 views

Will the impact of removing all the organisms in a trophic level be different for different trophic levels?

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 427 views

What will happen if we kill all the organisms in one trophic level?

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 324 views

Which of the following are environment-friendly practices? (a) Carrying cloth-bags

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 345 views

Which of the following constitute a food-chain? (a) Grass, wheat and mango

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 333 views

Which of the following groups contain only biodegradable items? (a) Grass, flowers and leather

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 359 views

How can you help in reducing the problem of waste disposal? Give any two methods.

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 405 views

What is ozone and how does it affect any ecosystem?

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 363 views

What is the role of decomposers in the ecosystem?

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 680 views

What are trophic levels? Give an example of a food chain and state the different trophic levels in it.

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 405 views

Give any two ways in which non-biodegradable substances would affect the environment.

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 350 views

Give any two ways in which biodegradable substances would affect the environment.

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 345 views

Why are some substances biodegradable and some non-biodegradable?

asked Dec 12, 2021 in Our Environment

0 votes

1 answer 402 views

On the basis of the issues raised in this chapter, what changes would you incorporate

asked Dec 12, 2021 in Sustainable Management of Natural Resources

0 votes

1 answer 382 views

What can you as an individual do to reduce your consumption of the various natural resources?

asked Dec 12, 2021 in Sustainable Management of Natural Resources

Page:

« prev
1
...
108
109
110
111
112
...
202
next »

Recent Badges

...