Environment quiz

The solid crust of the Earth is called the:

The narrow zone where land, water and air interact to support life is the:

Which is a human-made component of the environment?

World Environment Day is celebrated on:

The domain consisting of water bodies is the:

A pond with its plants, animals and water forms an:

Which is part of the human environment?

The atmosphere is held around the Earth by:

Which is a natural component of the environment?

The biotic environment refers to:

Distinguish between biotic and abiotic components with examples. (2 marks)

Why is the biosphere important? (2 marks)

How do humans modify the natural environment? Give two examples. (2 marks)

Name two components of the human environment. (2 marks)

What is meant by the balance of nature? (2 marks)

Why do we need to protect forests? (2 marks)

How is the hydrosphere useful to humans? (2 marks)

How did the invention of the wheel change human life? (2 marks)

Name two environmental problems caused by human activities. (2 marks)

Give two examples of ecosystems found in India. (2 marks)

Of the Earth's water, about 97 percent is in oceans and 3 percent is fresh water. If the total water is 1400 million cubic km, find the volume of fresh water. (3 marks)

A city had 40 percent green cover in 1990 and 16 percent in 2020. Find the fall in percentage points and the average fall per decade. (3 marks)

A school collected 240 kg of waste in a month: 120 kg paper, 48 kg plastic, 60 kg food waste and 12 kg metal. Find the percentage of each type. (3 marks)

A family uses 10 plastic bags a week. If every family in a colony of 300 families does the same, how many bags are used in a year (52 weeks)? (3 marks)

The Earth's land area is about 148 million square km. If about 31 percent is covered by forests, find the approximate forest area. (3 marks)

Read the passage and answer the questions. Asif lives in a village near a river. His family farms the land, gets water from a well and cooks on a biogas stove. Recently, a factory came up nearby and the river began to smell. (i) Name two natural components of Asif's environment. (ii) Name one human-made component. (iii) How did the factory affect the environment? (5 marks)

Read the passage and answer the questions. In a forest, deer eat grass, tigers eat deer, and dead animals are broken down by microbes into the soil. (i) Is this an ecosystem? Why? (ii) Name one producer and one consumer. (iii) What would happen if tigers disappeared? (5 marks)

Read the passage and answer the questions. A new highway is planned through a forest to connect two cities. Environmentalists protest, while traders support it. (i) What benefit will the highway bring? (ii) What harm may it cause? (iii) Suggest a balanced solution. (5 marks)

Read the passage and answer the questions. Students of a school celebrated World Environment Day by planting 200 saplings, banning plastic in the canteen and starting a compost pit. (i) On which date is it celebrated? (ii) How do these actions help the environment? (iii) Suggest one more activity. (5 marks)

Read the passage and answer the questions. Early humans hunted animals and gathered fruits. Later they learnt to grow crops, tame animals and build houses near rivers. (i) Why did they settle near rivers? (ii) How did farming change the environment? (iii) Was their impact on nature large or small compared to today? (5 marks)

Explain the major components of the environment with a flowchart. (6 marks)

Describe the four domains of the natural environment and show how they interact using a labelled diagram. (6 marks)

Explain how human interaction with the environment changed from early humans to the modern age. (6 marks)

Explain an ecosystem with the example of a forest or pond and draw a labelled diagram. (6 marks)

Discuss the need to protect the environment and suggest six measures that individuals and governments can take. (6 marks)