Pneumonia is a virus or a bacteria?

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Which layer will become saturated first when rain falls?

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