Refer to the chart below showing the major threats for plants, mammals, and birds that are considered vulnerable to extinction.

-Which threats are not caused by direct or indirect actions by humans?
A) Alien invasive species
B) Natural disasters
C) Alien invasive species and natural disasters
D) Direct loss/exploitation
E) Atmospheric pollution and intrinsic factors

Question

Refer to the chart below showing the major threats for plants, mammals, and birds that are considered vulnerable to extinction.
 
-Which threats are not caused by direct or indirect actions by humans?
A) Alien invasive species 
B) Natural disasters 
C) Alien invasive species and natural disasters 
D) Direct loss/exploitation 
E) Atmospheric pollution and intrinsic factors

Quizplus · Accepted Answer

Natural disasters are not caused by human actions; they occur due to natural processes of the Earth.

Refer to the Chart Below Showing the Major Threats for Plants