The video covers class 7 science topics on biodiversity and environment, including exercises on resources and environmental balance. It explains concepts like reuse, recycle, and reduce, and discusses natural resources and environmental elements. The importance of watersheds and wetlands, especially in Nepal, is highlighted. The video also addresses environmental protection activities, solid waste management, and causes of environmental degradation. It emphasizes the interrelationship between biodiversity and environment, and the impact of human activities on agriculture.

What is an example of a perpetual resource?

• Coal

• Solar energy

• Natural gas

• Petroleum

What does the term 'reuse' mean?

• Using a product once

• Converting waste into new materials

• Using something again or more than once

• Reducing the size of a product

Which of the following is a non-renewable resource?

• Hydropower

• Coal

• Solar energy

• Wind energy

What is a watershed?

• A region with high biodiversity

• A body of water surrounded by land

• An area of land that drains into a common waterway

• A type of wetland

Why is Nepal rich in biodiversity?

• Due to its large population

• Because of its unique geographic features

• Because it has no industrial activities

• Due to its high pollution levels

How does overpopulation contribute to environmental degradation?

• By reducing pollution

• By increasing demand for resources

• By promoting biodiversity

• By conserving natural habitats

What is the role of wetlands in the environment?

• They are primarily for recreational activities

• They are used for urban development

• They provide habitat for diverse species and filter pollutants

• They are not significant for biodiversity

Which activity helps in reducing greenhouse gas emissions?

• Using renewable energy

• Urbanization

• Deforestation

• Overfishing

What is the importance of maintaining a balance between living and non-living things?

• It ensures the survival of living organisms

• It only affects non-living things

• It is not important

• It leads to environmental degradation

How can individuals contribute to environmental conservation?

• By increasing waste production

• By practicing reduce, reuse, and recycle

• By supporting deforestation

• By ignoring environmental issues