Answer:
Exposed
Explanation:
When the ice age ended, the glaciers slowly retreated until they reached their current extent limited to the polar regions and alpine mountain climates. The land covered by ice had also been depressed by the weight of the massive glaciers and consequently began to rebound in the centuries following the retreat of the ice sheets. These once frozen lands also turned into large boreal forests with rich ecosystems.
B - Senegal River. Borders Senegal and Mauritania
Continent-continent collisions:)
The answer should be 3a-6+14 = 3a+8.
The correct answer is B. Sunlight is a limited resource in the lower
depths of the oceans. A is not correct, as there is plenty of water
throughout the entire ocean. C and D are not correct because many plants
and sea creatures live at even at the lowest depths of the ocean, where
they serve as prey and predators of their fellow organisms.