Which phrase describes convection?

a transfer of heat between two objects that are touching

b transfer of heat by the actual movement of warmed matter

c the process in which energy is released by molecules breaking apart

d the process in which energy is emitted by one object, transmitted through space, and absorbed by another

Theories basic to all of the life sciences include the germ theory of disease. theory of evolution by natural selection. o two of these answers are correct none of these answers are correct o cell theory.

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -

Consider the following planned experiment. factor experimental group control group light exposure tots of sun tots of sun amount of water weekly weekly type of soil nutrient rich nutrient rich size of pot large which variable is being tested in this experiment? small a. size of pot b. type of soil c. light exposure d. amount of water