Give me an example of a scientific question they could be investigating with an experiment

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

How does secondary succession differ from primary succession?

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