Both diamond and coal are formed by changes in pressure and temperature below the earth's surface. which of these is a step in the formation of the minerals?
atoms break up in extreme heat
atoms are rearranged in materials
atoms combine in water to form solids
atoms of magma cool after a volcanic eruption

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