The scientists tracked several geeses flight paths.otherwise we can rewrite the sentence as "several geeses flight paths tracked by the scientists"
There were no roads or automobiles in the area.
It's clear through the passage that there are no paved roads or cars to get the miners from place to place. They had to carry all of their gear and supplies through dangerous trails by foot, only being able to travel a certain amount each day.
Am not sure but It is D..
Thanks!
I think the answer is *productive.
The answer is: C
hope this helps
