The _layer or earth's surface is called the
which consists of
The
layer or earth's surface is called the
_ which consists mostly of
and
The earth has an inner
that is
and is

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

The function of the excretory system is to control homeostasis and

A(n) is a molecule influences the way that a molecule reacts.