Protons, neutrons, electrons, and a nucleus are

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

Select the correct answer. what does the process of natural selection involve?