Answer:
He did not control for lurking variables and their impacts on the results of his experiment. Amount of sunlight and water received are two outside variables(or confounding variables) that may impact the growth of his plants and influence the results. He needs to apply the same amount of sunlight and water to each plant within a different planting soil in order to rule out the influence of those two variables and test the sole effect of the soil brand on the plant growth. Otherwise, it would be hard to determine whether his plant growth was because of the soil brand or the different amounts of sunlight and water received
Answer:
20
Step-by-step explanation:
20
19,750,000
15,250,000
+ 6,945,000
---------------------
41,945,000 = forty-one nine hundred forty-five thousand
the answer is B
Answer:
NJNJNJNJNJNJNJNJNJNJNJ
Step-by-step explanation:
jrgntjgntjngeorigjrf 12^4
Answer:
Step-by-step explanation:
divide 12 or 15