Our Environment--W S

Our Environment

Q I Read the statements and write if they are true or false.

1. The biotic environment consists of non living things. False

2. The layer of air surrounding the Earth is called biosphere. False

3. The interrelationship between plants, animals and human beings with the

physical environment is called ecosystem. True

4. The lithosphere refers to large bodies of ocean and seas. False

5. Man has changed the environment of many places to make it fit for

human dwelling. True

Q IV Fill in the blanks will the words given in the box.

Ecosystem, decomposers, omnivores, producers, carnivores, herbivores,

People Green plants are considered producers and they are at the beginning of

the food chain. Next are the consumers. These living things need the producers to be their food. Animals who eat plants are called herbivores. They are considered consumers and are next in the food chain. Animals who eat other animals are called carnivores. They are also considered consumers and are a link farther along on the food chain since they need the herbivores for their food. Animals and people who eat both animals and plants are called omnivores, and they are also part of the consumer piece of the ecosystem. Finally, the last part of the ecosystem is the decomposers. These are the living things which feed off dead plants and animals and reduce their

remains to minerals and gases again.

Q V HOTS question

Human activity in many parts of the world has disturbed the natural balance of the environment.

Human activity of felling trees, construction, man made environment has

disturbed the balance of the environment. Global warming is the biggest example.