Answer:
The article points out that people lived
peacefully until resources began to be
depleted, then warring and cannibalism
began.
Explanation:
Answer:
The aircraft is gaining altitude at 
Explanation:
Draw a vector diagram. (Right angle triangle speed as the hypotenuse)
Let
x -----> horizontal component of the speed
y ----> vertical component of the speed
s ----> speed in miles per hour
we know that


we have



substitute




therefore
The aircraft is gaining altitude at 
Answer:
16 years because it usually occurs in younger people/teens
Answer:
Option A
Explanation:
The green houses gases concentration increases in the the troposphere layer of the atmosphere due to which the sunrays (IR radiation) reflected back by earth are restricted by the green house gases thereby increasing the temperature of the earth and make the climate warmer.
Hence, option A is correct
Expectations not exceptions