Answer:a.The movement of people between regions promotes the spread of culture.
Explanation: Possibilism is the idea that thought the physical environment can affect human actions, people have the ability to adapt to their environment.
High and low pressure system both bring changes in weather.
Answer: Option D
<u>Explanation:</u>
There are certain areas which are affected by high pressure of air and some are affected by low pressure of air. This high and low pressure of air is caused by the ascending and descending of air.
But both affect the weather and causes a change in it. Due to the high pressure of air, weather becomes cold and dry and on the opposite side, because of low pressure of air, there is formation of clouds and rain.
Answer: Niger- landlocked country
Explanation: Chad, Algeria, Libya, and Benin surround it
Answer:
NAFTA and its purpose are to eliminate the obstacles in the trade between the USA, Canada, and Mexico.
Explanation:
It is a NorthAmerican agreement for trading between these 3 countries. It is the biggest agreement for free trade. NAFTA has abolished customs duties on more than half of Mexico's exports to the US and more than today's third US to Mexico.
Answer:
Explanation:
Given that:
Area = 475 acres
The length of the channel (L) = 6870 feet
The average water shield slope (S) = 100 feet/mile
Since; 1 mile = 5280 feet
Burst duration D = 15 min
∴
100 feet/mile = 100/5280
The average water shield slope (S) = 5/264
Using hydrograph method:
The time of concentration
where;
L = 6870
S = 5/264
min
Since 60 min = 1 hour
32.34 min will be (32.34*1)/60
= 0.539 hour
Lag time
The time to peak i.e
Since D = 15 min is not equal to , then we hydrograph apart from duration lag time.
Then;
Now, we need to determine the peak discharge by using the formula:
where
484 = peak factor
Recall that A = 475 acres, to miles, we have:
A = 0.7422 mile²
∴