C. a delta. Because a delta is the only one of those choices to where it is formed at the mouth of a river
<span>The answer is Native American. However, if we are talking about Native
Americans in South America there were various tribes who were now living there.
You have the Mayas and the Aztecs living in Mexico and the Incas of Peru. These people had their own civilization and
had to farm as well as to build large structures which gave them a high level
of intelligence. Further proof that of
intelligence was they had their own calendar and knew mathematics as well as
astronomy.</span>
Your formula is --->a=∅r
a=∅r
a=(7π/5)25
a=Answer
hope this helps!
The four factors which reflected population density is:
Natality rate
Mortality rate
immigration
emigration