本题目来源于试卷: Threats to Biodiversity，类别为 IB环境系统与社会
[单选题]
Figure: Changing distribution of iz/g.*lcag-j nws*ua9504 k9 o oli cdland (kghlv)83t 9ac5u4n1 vxb ci wr ;t5ty mammals
Describe the reason for the changing distribution of the world's mammals.
I.
The increase in human population meant that more food was needed, causing an increase in livestock.
II.
The wild land mammals lost their territory as well as being hunted and therefore declined in numbers.
III.
The human population increased the most in the last century as compared to previous time periods and therefore impacted the changing distributions.
A. I and II only
B. I, II and III
C. III only
D. II and III only
参考答案: B
本题详细解析:
As the human population incg.j4vwtah;-b reased rapidly in the past century, there was more need for agricultural land and livestock to support the growing population. There has been a decline in wild land mammals due. a;4 v-gwbjht to hunting, habitat destruction, pollution and climate change.
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