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

∴


C. Europe has a coastal location and many navigable rivers.
This geography allows for easy trade and commerce through commercial ships and boats.
Cultural convergence occurs more rapidly with improved transportation.
<h3>What is cultural convergence?</h3>
Cultural convergence is the phrase used to describe how civilizations tend to alter and adapt when they are frequently exposed to different cultures. Cultures will become more similar the more they interact with one another. Time and points of interaction are two major aspects that affect cultural convergence. Greater commonalities between cultures emerge from longer exposure times, of course. Increased contact rates, accessibility to communication and transportation, and membership in the same groups all speed up the rate of convergence. It will take longer for a civilization to absorb the traditions of another culture if they are just sometimes exposed to it through pop culture media than if they are exposed to their food, language, art, etc.
To learn more about cultural convergence visit:
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C) 30 miles is the correct answer
(I’m not sure but I think so)
<span>Selection (a) is the best answer. Rainforests, through their ecosystems, are able to mitigate the effects of prolonged rain events and droughts that could take place in the areas in which they reside. The expansive canopies and tall trees hold in the moisture that does fall to make sure that the areas within them receive sufficient moisture for growth.</span>