Which is a biotic factor?
a. rotting carcass
b. rock
c. drop of water
d. fire

To test the responsiveness of the kidneys, scientists have designed an experiment tracking urine output of people during a normal day, while regulating the in-take of water by mouth. what would be an appropriate hypothesis for this experiment?

Which case is an atom least likely to bond with other atoms

Which best example explains the surface tension of water