1. latitude: 20°n
longitude: 65 w
2. latitude: 50°n
longitude: 10° e
3. latitude: 20°n
longitude: 80° e

Please read the explanation section.

Explanation:

1. The Puerto Rico Trench.

2. That's near Arnstein, east of Frankfurt, Germany.

3. It is India. India is both a prominent country and subcontinent of Eurasia.

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.