What does a food chain always start with?

What does the Ozone in the atmosphere do?

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...

An artificial ecosystem is

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 wastes can be managed by practicing techniques like

Non biodegradable waste materials can be treated by composting technique.

What is the solid crust of the Earth is called?

Which is not a component of human environment

narrow zone where land water and air interact is called