In the environment we can see two types of things around us. They are living and nonliving things.
Living things in our environment
Non – living things in our environment
Our environment is our surroundings or all the living and nonliving things around us.
Each of these places has a different type of environment.
We know that an environment is all the living and nonliving things in a certain area.
E.g. – A Lake
All the plants and animals living in and around the lake.
Sunlight, water, and soil are some of the nonliving parts of a lake.
All the parts of an environment work together. Every living thing in an environment depends in some way upon other living and nonliving things in the environment. But how?
This is how plants and animals survive in an environment.
Air is a mixture of gases. There are two important gases for plants and animals to live. They are;
1. Oxygen 2. Carbon dioxide
All animals need a gas called oxygen to breath. Without oxygen animals cannot survive in the environment. Animals breathe oxygen and breathe out (release) carbon dioxide.
All plants need the energy of sunlight, water and a gas called carbon dioxide to live and grow. Plants absorb carbon dioxide and release oxygen as a waste material.
Plants release oxygen into the environment
Animals release carbon dioxide into the environment. When we burn coal, oil, gas, wood and other materials, carbon dioxide is released into the environment.