Nature & science · Age 11 · Quarter 3 – Advanced Ecology
Causes Behind Population Change
Identify and explain human and natural causes behind observed population changes.
Module
Quarter 3 – Advanced Ecology
Age
Age 11
Duration
10 min
Questions
5
What's in this exercise
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Question 1
Multiple choice
The blue whale population dropped dramatically in the 20th century. What was the most likely cause?
Question 2
Multiple choice
A graph shows a deer population rising steadily after wolves were reintroduced to a national park. This is:
Question 3
Multiple choice
Which human activity would most likely cause a sharp increase in mosquito populations?
Question 4
True or false
Natural events like volcanic eruptions can cause rapid population declines in local ecosystems.
Question 5
Matching
Match each cause to the likely population change it produces.