Chapter Practice

If 20 J of energy is trapped at producer level, then how much energy will be available to peacock as food in the following food chain?

Plant$\to$Mice $\to$ Snake $\to$Peacock

The pyramid of numbers is

The ecological pyramid that is always upright.

Phosphorus is needed for the production of

Solar energy trapped by green plants finally returns to the environment. Comment.

What are the changes that occur to reach a climax community?

Using a flowchart explain the process of decomposition. List the factors which affect this process.

Why are sedimentary cycles slower than gaseous cycles? Explain giving reasons.