Why can’t you feel it? air pushes down i all

Acommon kind of mechanical weathering is called

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

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.