Our Environment
In a food chain, the flow of energy is always:
Depletion of the ozone layer is mainly caused by:
According to the 10% law of energy transfer, how much energy is available to the next trophic level?
The accumulation of harmful chemicals in higher trophic levels is known as:
What is the primary function of the ozone layer in the upper atmosphere?
What is an ecosystem?
Why are green plants called producers?
What is biological magnification?
State the 10 percent law of energy flow in an ecosystem.
What is ozone and how is it formed in the atmosphere?
Why is the depletion of the ozone layer a cause for concern?
What are non-biodegradable substances? Give examples.
What are CFCs and how do they affect the ozone layer?
Why is ozone layer depletion a cause of concern? State the main reason for its depletion.
What is an ecosystem? Explain its various components with examples and describe the flow of energy through different trophic levels in an ecosystem.
What is ozone? Where is it located in the atmosphere, and why is its depletion a cause for concern? Explain the role of CFCs in ozone depletion and mention preventive measures taken globally.
What is ozone? How is it formed in the upper atmosphere? Explain the depletion of the ozone layer, its causes (especially CFCs), and its harmful effects on human health and the environment.
What are biodegradable and non-biodegradable wastes? Differentiate between them with examples. Explain two major methods of waste disposal commonly practiced in modern societies.
What is an ecosystem? Explain its various components with examples. Also, describe the flow of energy through different trophic levels in an ecosystem with the help of a neat diagrammatic description and the 10% law.
What is the ozone layer? Describe its formation in the stratosphere, its significance for life on Earth, and the causes and consequences of its depletion, along with preventive measures being taken globally.