Within a watershed, water can flow
a.) from a river into a wetland
b.) from a lake into a stream
c.) from a stream into the ground water
d.) all of these

Which properties describe all matter?

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural. question 2 reflects a moral or social value. question 3 refers to something that can be measured. question 4 reflects a question that can’t be observed.

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?