Answer:
D
Explanation: the bones can becomew brittle from not haveing calcium
Causes an explosion that sends the rocket upwards
Answer: the answer is C
Explanation: I been trying to find the same answer for this exact question for acellus and C was the correct answer
Is this a multiple choice question or...??
If not, I'd say, that its simple as scientists can easily decipher which variable caused the situations result. And thats because you may have one manipulated variable to be able to know the responding variable.