B
They were all civil rights activist
Answer:
Explanation:
Option A is the correct answer
The black ships were given this name because the vessels were black as they were older and black smoke would rise from the coal-fired steam engines of the American ships.
Answer: rocks weathered due to the effect of water.
Explanation: Placer deposits forms when rocks weathered due to the effect of water. The heavy minerals from the rocks get settled down in water. Minerals that form placer deposits have high specific gravity, they are resistant to chemical weathering process and are durable.
