Question

I need help asap!
All of the following are possible sources of error in a scientific investigation except for

a.not controlling all the variables in an experiment.

b.measuring the materials of an experiment incorrectly.

c.adding research resources during an investigation.

d.discovering new variables as the experiment proceeds.

Answer 1

@Hope210

Answer 2

What do you think it is?

Answer 3

Im not sure

Answer 4

I think it might be A

Answer 5

Yeah, A seems to be the right one so I would just go with that. I'm not 100% sure tho

Answer 6

Ill try

Answer 7

Alright best of luck :)

Answer 8

Thanks