What evidence exists to support the theory of plate tectonics? (3 points) select one: a. fossils of land animals are found on the ocean floor. b. mid-ocean ridges always lie between continents. c. old lithosphere is subducted and recycled at ocean trenches. d. rock formations in deserts show evidence of erosion from glaciers.

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