B2 - Sustainability Flashcards
1
Q
What is captive breeding?
A
Captive breeding is breeding animals in captivity to increase their population.
2
Q
Why do animals become extinct?
A
- human activity
- cannot adapt to environmental changes
- cannot compete with other animals
3
Q
Why are different whale species found in different places?
A
They have different food.
4
Q
Why are fish a sustainable resource?
A
This is because they can reproduce and so their numbers will never drop too much.
5
Q
What commercial value do live whales have?
A
Tourism.
6
Q
What must be considered when setting whaling quotas?
A
- pollution levels
- overfishing of the whales’ food source
- food webs in the ecosystem
