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Class 7 Social Science Chapter 1 Important Question Answers - Environment

Q 1. Define natural environment. What are its domains?

Ans: Natural Environment: All the objects created by nature constitute physical or natural environment. It refers to both biotic and abiotic conditions existing on the earth. Land, water, air, plants and animals form the natural environment. Lithosphere, hydrosphere, atmosphere and biosphere are the domains of natural environment.Class 7 Social Science Chapter 1 Important Question Answers - Environment

Q 2. Why is the environment changing?

Ans: Environment is changing because of our needs. They are increasing day by day; we are therefore modifying and at times even destroying our natural surroundings.

Q3: Why is the hydrosphere essential for all living organisms?

Ans: The hydrosphere is essential for all living organisms because it comprises various sources of water and different types of water bodies like rivers, lakes, seas, and oceans. Water is a vital component for the survival and functioning of living organisms. It is necessary for processes such as hydration, transportation of nutrients, regulation of body temperature, and the maintenance of overall bodily functions. 

Q4: How does the atmosphere protect us?

Ans: The atmosphere, a thin layer of air surrounding the Earth, protects us from harmful rays and the scorching heat of the sun.

Q5: How do plants and animals depend on each other?

Ans: Plants and animals depend on each other for various aspects, such as food, shelter, pollination, and oxygen-carbon dioxide exchange.

Q6: How have humans modified their environment over time?

Ans: Humans have modified their environment through activities such as agriculture, domestication of animals, the invention of tools and technology, and industrialization.

Q7: When is World Environment Day celebrated?

Ans: World Environment Day is celebrated on June 5th every year.

Q8: How can individuals contribute to protecting the environment?

Ans: Individuals can contribute to protecting the environment by conserving energy, reducing water usage, recycling, planting trees, using public transportation, and supporting eco-friendly products and practices.

The document Class 7 Social Science Chapter 1 Important Question Answers - Environment is a part of the Class 7 Course Social Studies (SST) Class 7.
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FAQs on Class 7 Social Science Chapter 1 Important Question Answers - Environment

1. What is the importance of the environment for living organisms?
Ans. The environment is crucial for living organisms as it provides the necessary resources such as air, water, and food. It also offers habitat and shelter, which are essential for survival. A balanced environment supports biodiversity, which contributes to the stability of ecosystems.
2. How do human activities impact the environment?
Ans. Human activities such as deforestation, pollution, and industrialization significantly impact the environment. These actions can lead to habitat destruction, loss of biodiversity, and climate change. Pollution from factories and vehicles can degrade air and water quality, affecting the health of all living organisms.
3. What can individuals do to protect the environment?
Ans. Individuals can take several steps to protect the environment, such as reducing waste, recycling, conserving water, and using energy-efficient appliances. Planting trees and supporting sustainable practices can also help maintain a healthy environment. Educating others about the importance of environmental protection is equally vital.
4. What are the effects of climate change on the environment?
Ans. Climate change causes various effects on the environment, including rising temperatures, melting ice caps, and changing weather patterns. These changes can lead to more frequent extreme weather events, such as hurricanes and droughts, which negatively affect ecosystems, wildlife, and human communities.
5. Why is biodiversity important for the environment?
Ans. Biodiversity is essential for the environment as it ensures ecosystem resilience and stability. A diverse range of species contributes to the functioning of ecosystems, helping to regulate climate, purify air and water, and pollinate plants. Biodiversity also provides resources for food, medicine, and economic benefits.
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