Answer: Coronal Mass ejection-geomagnetic storm
Geomagnetic storm-aurora
Explanation:
I just took the test
B. Scarcity of drinking water
A common resource (or the "commons") is any scarce resource, such as water or pasture, that provides users with tangible benefits but which nobody in particular owns or has exclusive claim to. A major concern with common resources is overuse, especially when there are poor social-management systems in place to protect the core resource.
Answer:
During pregnancy it is the eighth month I think. Sorry if it’s wrong.
Explanation: