Which is a renewable resource?

Which term refers to the number and variety of species that live in an area?

Which can be broken down by natural processes?

When is World Environment Day is celebrated?

Which of the following is a primary consumer in a grassland ecosystem?

What percentage of energy is passed on to next tropic level?

What is this called?

Which organism recieves the least amount of energy from the producer?

The phenomenon by which toxins concentrate in the organisms at higher trophic levels within an ecosystem is known as...

Consider the following food chain:

Algae > Mayfly > Minnow > Trout

In a polluted ecosystem, which organism is likely to have the HIGHEST level of toxic chemicals in its body?

What does the Ozone in the atmosphere do?

What damage can UV rays cause?

What is causing damage to the Ozone layer?

Identify the non- biodegradable substance from the following.

An artificial ecosystem is

Each step of a food chain is called as

Which of the following constitute a food chain?

Calculate the amount of energy available to snake in the given food chain if there is 6500 J of energy available to grass hopper.

Grass ----> grass hopper ---> frog -----> snake

Why do we need to manage the garbage we produce

i)To improve the health and quality of life

ii)For preventing environmental pollution

iii) To produce more biodegradable plastics

iv) To reduce the strain on natural resources

Non biodegradable waste materials can be treated by composting technique.

Every food chain in the ecosystem begins with____which are the original source of food.

Which of the following are trophic levels? Choose 2 options:

Which among the following statements is incorrect in view of the plants?

All the interacting organisms in an area together with the non-living constituents of the environment form a/an __________.

As human beings occupy the top level in any food chain, the maximum concentration of these chemicals get accumulated in our bodies. This phenomenon is known as

What will happen if deer is missing in the food chain given above? Choose 2 correct options:

Human-made materials like ____ will not be broken down by the action of bacteria or other saprophytes.