Question

Two students were testing the amount of fertilizer that would best promote the growth of tomato plants in a garden. Which of the following could be an unavoidable source of experimental error?

A. time given to the experiment
B. variation of tomato plants
C. amount of water given to the plants
D. fertilization during the experiment
Please answer FAST!!

Answer 1

Sorry that im late answering your question but this answer is B i just took it and chose B and got it right

Answer 2

B.

If you're given random tomato seeds, you won't really know what kind of tomatoes are thus unaware of how much fertilizer or water you need for that specific type causing a experimental error since your tomatoes will be different.