Hello. You did not enter the text to which this question refers, which makes it very difficult to answer it exactly. However, I will try to help you in the best possible way.
As you showed that the word "author" in line 10 was used as a proper noun, we can consider that the same word in line 4 was used in a general way and did not specify an exact person. This is because proper nouns are terms used to specify something or someone, as the question states that the word "author" was not used with the same meaning in line 4, we can consider that this is the difference.
A tropical rain forest is a densely wooded area that receives an annual rainfall of at least 100 inches and has broad-leafed evergreen trees that form a continuous canopy.
Answer:
the physical geography kept them isolated from other powerful civilizations?
Explanation:
I know number, one which is
B
I think 6 days
During this infamous trek, known as the “Bataan Death March,” the prisoners were forced to march 85 miles in six days, with only one meal of rice during the entire journey.