Biosphere Reserves and Conservation Methods

The video discusses various threats to biodiversity, including habitat loss, pollution, climate change, exploitation, invasive species, and industrialization. It also outlines conservation efforts such as in-situ and ex-situ conservation, and the creation of biosphere reserves to protect biodiversity.

What is the primary cause of habitat loss for plants and animals?

• Climate change

• Natural disasters

• Predation by other species

• Expansion of human settlements

How do pollutants primarily affect ecosystems?

• By promoting plant growth

• By disrupting food chains and ecosystem balance

• By enhancing food chains

• By increasing biodiversity

What is a major consequence of increased carbon dioxide levels?

• The greenhouse effect leading to global warming

• Stabilization of polar ice caps

• Decreased global temperatures

• Increased biodiversity

What is a significant threat caused by overexploitation?

• Improved ecosystem balance

• Habitat expansion

• Species extinction

• Increased species diversity

How can invasive species threaten local biodiversity?

• By competing with and threatening local species

• By providing new food sources

• By enhancing local ecosystems

• By promoting local species growth

What is in-situ conservation?

• Conservation in natural habitats

• Conservation through genetic modification

• Conservation by relocating species

• Conservation in artificial environments

Which of the following is an example of ex-situ conservation?

• Wildlife sanctuaries

• Botanical gardens

• Natural reserves

• National parks

What is the purpose of a biosphere reserve?

• To promote urban development

• To conserve biodiversity through sustainable ecosystem use

• To increase agricultural output

• To eliminate invasive species

Which conservation method involves protecting species in their natural habitat?

• Ex-situ conservation

• Habitat destruction

• In-situ conservation

• Genetic engineering

What is a key feature of a biosphere reserve?

• It excludes human activity

• It integrates conservation with sustainable use

• It focuses on a single species

• It is located in urban areas