Short and Long Questions: Our Environment | Footprints Class 7: Book Solutions, Notes & Worksheets PDF Download

Short Answer Questions

Q1: What is the meaning of the word "environment"?
Ans: Environment refers to the surroundings within which an organism exists, which can be natural or artificial.

Q2: What are the components of the natural environment?
Ans: The natural environment comprises living and non-living things that occur naturally on Earth.

Q3: What does the abiotic environment consist of?
Ans: The abiotic environment comprises inorganic or non-living things such as the lithosphere, hydrosphere, and atmosphere.

Q4: What is the biosphere?
Ans: The biosphere includes both the biotic and abiotic environment and extends from the bottom of the ocean to the top of the highest mountains.

Q5: What are producers in an ecosystem?
Ans: Producers or autotrophs like green plants can prepare their own food using water, carbon dioxide, and sunlight.

Q6: What is a food web?
Ans: A food web is a network of interconnected food chains where energy is transferred from one living thing to another.

Q7: Define ecosystem.
Ans: An ecosystem is a natural unit consisting of non-living and living elements that interact with each other.

Q8: How do human activities impact the environment?
Ans: Human activities like deforestation and industrialization accelerate environmental degradation.

Q9: What is global warming?
Ans: Global warming is the rising average temperature of the Earth's atmosphere and oceans, caused by increased carbon dioxide levels.

Q10: What is sustainable development?
Ans: Sustainable development ensures that the needs of the present do not compromise the ability of future generations to meet their basic needs.

Long Answer Questions

Q1: Explain the interdependence of organisms in the biosphere.
Ans: In the biosphere, all living organisms are interdependent, with producers, consumers, and decomposers playing vital roles in sustaining life.

Q2: Describe the components of the human environment and their impact.
Ans: The human environment includes human beings and their activities, which have led to disruptions in the natural balance of ecosystems through activities like urbanization and deforestation.

Q3: Discuss the effects of global warming on the environment.
Ans: Global warming leads to rising sea levels, extreme weather events, reduced snow cover, and ecological changes, impacting both ecosystems and societies.

Q4: Explain the concept of an ecosystem with examples.
Ans: An ecosystem is a system where living organisms interact with their physical environment. For example, a forest ecosystem includes various plant and animal species interacting with the soil, air, and water.

Q5: How can sustainable development be achieved in society?
Ans: Sustainable development involves practices like population control, using renewable energy sources, resource conservation, and waste recycling to ensure a balance between present needs and future generations' requirements.

Q6: Describe the difference between the abiotic and biotic components of the environment.
Ans: The abiotic components are non-living elements like air, water, and soil, while the biotic components include living organisms such as plants and animals.

Q7: Explain the role of producers, consumers, and decomposers in an ecosystem.
Ans: Producers convert sunlight into energy, consumers feed on producers or other consumers, and decomposers break down dead organisms, recycling nutrients in the ecosystem.

Q8: Discuss the impact of human activities on the biosphere.
Ans: Human activities like pollution and habitat destruction threaten biodiversity and disrupt natural ecosystems, leading to various environmental issues.

Q9: How does the biosphere maintain a delicate balance between living and non-living elements?
Ans: The biosphere's balance is maintained through complex interactions between organisms and their environment, where any change in one component can affect the entire system.

Q10: Why is it important to address global warming and promote sustainable development?
Ans: Addressing global warming and promoting sustainable development are crucial to mitigating climate change, preserving ecosystems, and ensuring a habitable planet for future generations.