Soils form A.
from living processes only.
B.
from nonliving processes only.
C.
from both living and nonliving processes.
D.
from fossil fuels.

Which type of microscope would allow the viewer to see ribosomes inside a cell?

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

An object weigh 40n in air ,weigh 20n when submerged in water,and 30n when submerged in a liquid of unknown liquid density.what is the density of unknown of liquid?