Human impacts on biodiversity (Edexcel GCSE Biology Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is biodiversity?
What is biodiversity?
Variety of living organisms in ecosystem
How does waste from fish farms affect the environment?
How does waste from fish farms affect the environment?
It leaks into water, polluting it
Why do fish farms promote the spread of disease to wild fish?
Why do fish farms promote the spread of disease to wild fish?
High densities of fish in enclosures
What problem arises from feeding carnivorous farmed fish like salmon?
What problem arises from feeding carnivorous farmed fish like salmon?
Depletes stocks of wild fish
Why do non-indigenous species often out-compete native species?
Why do non-indigenous species often out-compete native species?
They may have no natural predators
When were cane toads introduced to Australia?
When were cane toads introduced to Australia?
1930s
What causes eutrophication in rivers and lakes?
What causes eutrophication in rivers and lakes?
Overuse of fertilizers in agriculture
How do algal blooms harm underwater plants during eutrophication?
How do algal blooms harm underwater plants during eutrophication?
Block sunlight from reaching them
Why does oxygen deplete in water during eutrophication?
Why does oxygen deplete in water during eutrophication?
Bacteria use it decomposing dead plants
Which activity is a positive human interaction for biodiversity?
Which activity is a positive human interaction for biodiversity?
Replanting hedgerows and woodlands