B2.16: Sustainability

Question 1

Give a few reasons how extinction could occur.

Answer 1

• human building activities destroy habitats
• humans often overhunt animals for food and pleasure
• human activities often pollute the environment
• humans outcomoete animals for resources such as food
• climate change can cause species to die out, and human activities may contribute to this climate change,

Question 2

Endangered spexies will become extinct if…

Answer 2

• their numbers fall below a critical level
• there is not enough genetic variation in the population
• the population are restricted to small areas

Question 3

Why is it important to conserve wildlife?

Answer 3

• many species could represent future food supplies
• humans should consider damage not just to individual species but to food chains as a whole.
• humans have a duty to conserve the environment for future generations to enjoy