Caroline wondered if soil type influence plant growth. She compared two soil samples. She planted 10 marigold plants: 5 in soil sample #1 and 5 in soil sample #2. Caroline monitored the plant growth over a 4-week time period. Her experimental data is summarized in the table. Caroline concluded that plants grow best in humus-rich soil. What comment applies to Caroline's experiment? A) This is a valid experiment. Caroline's conclusion is accurate. B) Caroline should have tried different plant varieties to reach a more accurate conclusion. C) Caroline should have tested more than one soil type. She only knows that humus-rich soil supports plant growth better than no humus. D) Caroline's conclusion is not accurate. She made no mention of the earthworms. They could have been the growth factor in soil type #2.
what do you think the answer is?
i believe it is either B or D
Your right I think Its B as well.
you think
IT Was C
The explanation: Caroline should have tested more than one soil type. She only knows that supports plant growth better than no humus. There are several different soil types, not just with or without humus. To reach the conclusion about the BEST soil type, Caroline should have tested other soil types.
I find that frustrating. Some plants work better with different soil types. thats frustrating
I know right
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