PLEASE HELP!!!! 15 point!!!!!

2 answers:

6 0

2_ it doesn't because scientist have to do multiple tests and they have to get the same results

1_i don't know for sure

Nadusha1986 [10]4 years ago

3 0

ANSWER 1: The manipulated variable is the fertilizer since the other factors (water and sunlight) are given in equal amounts. It is a controlled experiment because one group receives fertilizer while the other does not. Any differences in growth should be due to either having fertilizer or not.

ANSWER 2: In order for it to be a theory, it has to be tested numerous times by multiple scientists.

Hope it helps. God bless

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