What breaks up hard compacted soil and makes it more permeable? fungus

bacteria

earthworms

plants

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

Depending on the organism the number of in a cell may change

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