Answer:
Stable
Explanation:
Most thunderstorms have flat tops (or do not extend very far into the stratosphere) because the air in the stratosphere is stable.
Answer:
t=17.61 years.
Explanation:
Given that
Reserve of energy = 10,000 EJ
Energy used by human = 18 TW
We know that


So



Lets t time after energy will be exhaust
So



We know that
1 year = 365 days
1 year = 365 x 24 hr
1 year = 365 x 24 x 3600 s

So

t=17.61 years.
Canadian shield is composed of Precambrian rocks that cover 2.8 million square miles.
Answer:
B
Explanation:
If i understand it good, its definetly B.