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ExtremeBDS [4]
3 years ago
13

The simplest and earliest method for determing the size of the earth uses

Geography
1 answer:
Komok [63]3 years ago
7 0
The answer is: comparing the Sun’s relative position at two different locations on the earth’s surface.

Explanation:

In the third century BCE , Eratosthenes, a Greek librarian in Alexandria , Egypt , determined the earth's circumference to be 40,250 to 45,900 kilometers (25,000 to 28,500 miles) by comparing the Sun's relative position at two different locations on the earth's surface.

Eratosthenes determined the earth's size by observing known phenomena and applying basic arithmetic and geometry to them. Here's how he did it. Eratosthenes' methods were simple but effective. All he needed to know was the distance between two locations and what percentage of a circle this distance constituted.
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Answer:

correct option is A. increased water temperature

Explanation:

solution

we know as logging resulted in increased temperature as when watershed is partially clear cut or logging completely then decreased concentrations of dissolved oxygen and clear cut also reduced forest cover that also increase temperature

and generally by deposition of fine sediment in the gravel also carried out logging

so here correct option is A. increased water temperature

7 0
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