Earth diagram with 12 hours of sunlight and 12 hours of night

Nonpoint source pollution is difficult to control because it

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false