Which of the following best describes a pollutant?
a. a harmful substance that is released to the environment
b. a natural substance that is used by humans or other organisms
c. a substance that is used faster than it can be replaced
d. a substance that is naturally recycled by nature

I think it's A

Explanation:

I actually don't know but the definition of pollutant states that it's a something that is released that harms the environment. I don't know though :)

A harmful substance that is released to the environment

c is the correct answer hope this !

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."