Which picture shows the smallest building block of a living cell? A

B

C

D

There is only one visible choice I can not properly answer this question I would have to say A. as its the only choice avalible

Explanation:

the supermassive black hole is in the middle of the galaxy.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."