Sand and gravel are staples of the construction industry.

what process is involved in the distribution of these materials?

a)
a biological process
b)
igneous
c)
a sedimentary process
d)
weathering

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

What percentage of light hits earth's surface directly?

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one