Which of the following is most likely responsible for the fact that organic molecules no longer formed spontaneously on earth?
a. the amount of uv radiation increased
b. the amount of oxygen in the atmosphere increased
c. water accumulated in the oceans
d. earth's surface temperature warmed

the elements of art are the visual tools that the artist uses to create a composition. these are line, shape, color, value, form, texture, and space.

the principles of art and design are balance, contrast, emphasis, movement, pattern, rhythm, and unity/variety.

it depends on how much it could carry.