Question

a group of students conducted a science fair experiment to find out how the amount of fertilizer used will affect the growth of radish plants. the experiment was done using amounts of fertilizer that were less than and greater than the manufacturers recommendation. use the table to analyze the data of the growth of the radish plants measured after 10 days. which inference is supported by the data? plant group fertilizer concentration - 100% = recommended amount average plant height (mm) a 50% 465 b 100% 550 c 150% 476 a. giving radish plants too little or too much fertilizer will not affect plant growth. b. giving radish plants too little or too much fertilizer will slow down plant growth. c. giving radish plants more fertilizer will increase plant growth. d. giving radish plants less fertilizer will increase plant growth. megan is talking with her brother about a scientific theory that she is studying. i dont believe what the scientists say, because thats just a theory, her brother replies. if those scientists were certain, then it would be a law, not just a theory.

Explanation:

Step1: Analyze plant group A

Plant group A with 50% of the recommended fertilizer concentration has an average height of 465 mm, which is less than the average height of 550 mm for the 100% recommended - concentration group B.

Step2: Analyze plant group C

Plant group C with 150% of the recommended fertilizer concentration has an average height of 476 mm, which is also less than the average height of group B.

Step3: Draw conclusion

Since both the group with less - than - recommended and more - than - recommended fertilizer have lower average heights compared to the recommended group, giving radish plants too little or too much fertilizer will slow down plant growth.

Answer:

b. Giving radish plants too little or too much fertilizer will slow down plant growth.