Environment Extra Questions Chapter 1 Class 7 Geography

 Here you will get Chapter 1 Environment Class 7 Extra Questions for Geography that will be very useful in understanding all the key concepts provided in the chapter. Extra Questions for Class 7 will help you a lot in answering the questions and scoring good marks in the exams.

Environment Extra Questions Chapter 1 Class 7 Geography


Chapter 1 Environment Very Short Answer Questions (VSAQs):


1. On ______ every year world environment day is celebrated.

Answer

5th June.

2. Trade in which goods are exchanged without the use of money termed as ______.

Answer

Barter System.

3. ______ It is a narrow zone of the earth where land, water and air interact with each other to support life.

Answer

Biosphere.

4. ______ consist of living organism e.g. plants and animals.

Answer

Biotic.

5. Which revolution made communication easier and speedy across the world?

Answer

Information revolution.

6. ______ consist of non living elements e.g. land etc.

Answer

Abiotic.

7. The domain of water is referred to as ______.

Answer

Hydrosphere.

8. Name the four spheres of the earth?

Answer

Lithosphere, atmosphere, hydrosphere, biosphere.

9. How can we minimise environmental pollution? Give one point.

Answer

We can minimise environmental pollution by checking the growth of population.

10. Why do the animals, the vegetation and the way people live vary from place to place?

Answer

Climate plays an important role in this variations.

11. Give example Artificial ecosystem?

Answer

Aquarium.

12. Environner means ______.

Answer

Neighbourhood.

13. Which revolution made communication easier and speedy across the world?

Answer

Information revolution.

14. Mention two reasons of environmental pollution.

Answer

• Fast growing population.
• Unwise use of technology.

Chapter 1 Environment Short Answer Questions (SAQs):


1. Define environment?

Answer

Whatever we see surrounding us is our environment. Environment is our basic life support system. It provides the air we breathe, water we drink, the food we eat and the land where we live.

2. Define natural environment. What are its domains?

Answer

All the objects created by nature comprise of natural environment. It includes both biotic as well as abiotic condition existing on earth. Lithosphere, hydrosphere, atmosphere is the domain of natural environment.

3. What is Atmosphere?

Answer

The atmosphere is the thin layer of air that surrounds the earth. The gravitational force of the earth holds the atmosphere around it. It protects us from the harmful rays and scorching heat of the sun. It consists of a number of gases, dust and water vapour. The changes in the atmosphere produce changes in the weather and climate.

4. How are human beings destroying the natural environment?

Answer

Human beings modify the natural environment to satisfy their ever-increasing needs. They use the environment for their developmental activities. They are cutting forests and establishing factories/industries there. They are increasing the number of vehicles. The fumes of these vehicles pollute the air. They throw the garbage into the waterbodies and on open land. The ever-growing world population is also a threat to our environment.

5. What is hydrosphere?

Answer

The domain of water is referred to as hydrosphere. It comprises various sources of water and different types of water bodies like rivers, lakes, seas, oceans, etc. It is essential for all living organisms.

6. How is lithosphere? What does it provide us?

Answer

Lithosphere is the solid crust or the hard top layer of the earth. It is made up of rocks and minerals and covered by a thin layer of soil. It is an irregular surface with various landforms such as mountains,
plateaus, plains, valleys, etc. Landforms are found over the continents as well as on the ocean floors. This domain of the earth provides us forests, grasslands for grazing, land for agriculture and human settlements.

7. What is Biosphere?

Answer

Plant and animal kingdom together make biosphere or the living world. It is a narrow zone of the earth where land, water and air interact with each other to support life.

8. What are the elements of natural environment? How are they important for us?

Answer

The major elements of natural environment are land, water, air, plants and animals. All these are important in some way or the other. Land is needed for agriculture and human settlements. It provides
us forests and grasslands for grazing. It is also a source of mineral wealth. Air and water are essential because we cannot live without them. Plants and animals are independent. One cannot exist without the other.

Chapter 1 Environment Long Answer Questions (LAQs):


1. How did human interaction with the environment change over time?

Answer

Human beings interact with the environment and modify it according to their need. Early humans adapted themselves to the natural surroundings. They led a simple life and fulfilled their requirements from the nature around them. With time needs grew and became more varied. Humans learn new ways to use and change environment. They learn to grow crops, domesticate animals and lead a settled life. The wheel was invented, surplus food was produced, barter system emerged, trade started and commerce developed. Industrial revolution enabled large scale production. Transportation became faster. Information revolution made communication easier and speedy across the world.

2. Explain “Impact of human activities on Natural environment as well as on human life”.

Answer

• Environmental pollution has affected humans, animals, plants and ecosystem.  Air, water, land and noise pollution has greatly affected the environment.
• The depletion of ozone layer due to air pollution allows entering of UV rays from sun into the earth’s atmosphere which is associated with a number of health related and environmental issues. The depletion of ozone layer has effects in the form of global warming, which in turn leads to melting of polar ice, which will lead to rising sea levels and climatic changes around the world.
• Environmental degradation has a host of negative outcomes that effect human beings both directly and indirectly such as increased poverty, famine, weather extremes and species loss.
• Garbage from households and industrial units causes damage to local ecosystems, and it is a threat to plant and animal life. For example, landfills serve as a popular dining location for birds and other animals, but some of what they eat can cause diseases. Garbage and liquid waste that end up in water bodies negatively change the chemical composition of the water thereby causing water pollution.
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