Answer:
One
Explanation:
In a controlled experiment only one variable is changed at a time, while the others are kept the same/controlled so changes can be observed and a causation can be determined.
Answer:
It is because of Evaporation. The wind evaporates the water on your skin which in turn absorbs the heat from your skin. Wind and heat both help to evaporate that water and hence you feel cold. Water evaporates from your skin using up your body heat.
Explanation:
I hope this helps!
Answer C, I think. Hope to help :)
Peristalsis<span> is a radically symmetrical </span><span> contraction and relaxation of muscles</span><span> that propagates in a wave</span><span> down a tube, in an anterograde direction.</span>
