What is biodiversity?

How has biodiversity of the Earth changed over time?

Overall, what are humans currently doing to the Earth’s biodiversity?

Why do humans need good levels of biodiversity?

What does high biodiversity mean?

If there is high biodiversity,

If biodiversity is high, how stable is the ecosystem?

If biodiversity decreases, what happens to the stability of the ecosystem?

Why does high biodiversity cause stable ecosystems?

What do we want biodiversity to be?

Which activities are reducing biodiversity?

How can we maintain biodiversity?

How does recycling maintain biodiversity?

What are governments doing to maintain biodiversity?

What are charities doing to maintain biodiversity?

How do breeding programmes maintain biodiversity?

How do field margins help maintain biodiversity?

Which of these is a government policy to maintain biodiversity?

How does reducing deforestation maintain biodiversity?

What could happen if humans reduce biodiversity too much?

Why do humans need other species?

What might species depend on each other for?

What is the name for species depending on each other?

What does the future of the human species depend on?

What do we call environmental conditions that an organism lives in?

What do food chains show?

If population of the first member of food chain is reduced, what happens to populations of the next member?

What do farmers use?

What happens during farming with heavy rain?

What is the definition of eutrophication?

What happens to ecosystems during eutrophication?

What is water pollution?

What does overfishing mean?

What does overfishing cause?