Answer:
main sequence
Explanation:
The main sequence is a band of stars which includes most of them like our sun
A control group is the comparison group that helps to "make sure your experiment works." A control group is separated from the rest of the experiment and nothing happens to it kinda like a controlled variable. Controlled variables are the variables in a experiment that remains the same for example a temperature, time, type of products, etc..
Hope this helps!
The answer is rubidium -91 because it takes a shorter time of 58.4 seconds to become stable.
Answer:
C- 250+250= 500 newtons (the amount the both exerted) :)
Explanation: