Question

Which scenario would most likely cause a mass extinction?

A. global temperatures drop several degrees after several massive volcanic eruptions
B. a disease kills off a single species of predator within an ecosystem
C. a massive earthquake strikes North America
D. a wildfire burns a national park

(I think it would be B)

Answer 1

A. global temperatures drop several degrees after several massive volcanic eruptions

Step-by-step explanation:

• If any event causes widespread destruction of life on earth that would rapidly decrease the biodiversity, then such an event is called a mass extinction.
• All the organisms living on the planet require an optimum temperature for their survival, besides the temperature also influences the geological activities such as the weather, rainfall patterns, survival of plants and hence the amount of oxygen and control of pollution.
• Due to the importance of temperature, the drop in it globally would have a major impact on the living beigns.
• Since a drop in global temperatures would affect the organisms all over the planet this will lead to mass extinction.

Answer 2

Answer;

A. global temperatures drop several degrees after several massive volcanic eruptions

Explanation;

• A mass extinction refers to a widespread and a rapid decrease in the Earth's biodiversity.
• Mass extinctions may occur due to a number of reasons which includes, asteroid impacts, climate change, massive volcanic eruptions or a combination of all these causes.
• An example of mass extinction was during the Mesozoic Era, that led to the extinction of dinosaurs, about 65 million years ago.