Answer: C) a factor that may affect an experiment or investigation
Explanation:
This is the best answer. A and B can be eliminated. D describes a controlled variable which is more specific than a scientific variable, thus C is the best answer. It is the best description of just a scientific variable.
Answer:
No, you would not go blind, even though the composition of emotional tears are different.
They are in algebraic I think
The only logical answer would be C. Unicellular, but the answers seem to be all wrong.
<span>How much of the Earth’s water is usable as a freshwater resource?
3%</span>