The system of rules in a language that enables us to understand and communicate with others is called

the answer to your question is b

i think its the first one

b. read the phase at the intersection of any given temperature and pressure.

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."