The answer is b because I just took my test and got it right so good luck
Answer:
50%
Explanation:
One in five species on Earth now faces extinction, and that will rise to 50% by the end of the century unless urgent action is taken.
Oceans, rivers, valleys, mountains, plains, hills and glaciers are some examples.
<span>Earthquakes usually occur near deep mountain ranges deep sea trenches and volcanic activity</span>
