Read the passage below carefully and answer the questions put forward.

The environment refers to the air, water and land in which people, animals and plants leave. So human beings, animals, plants, air, water and soil are the main elements of environment. The natural forces such as storms, cyclones and earthquakes are also a part of this environment. Climate is thus a condition of the environment. All things that make up the environment are interrelated. The way in which the people, animals and plants are related to each other and to their surroundings is known as ecology. The ecosystem is a complex web that links animals, plants and every other life form in the biosphere. All these things hang together. The system is in a steady state of dynamic balance which means that by alternating any one part of the web you can affect all the other parts.

(a) What elements make up the environment?

(b) How are the elements interrelated?

(c) What do you mean by climate?

(d) What is meant by ecological balance?