What are several ways to reduce the effect of friction

•make surfaces smoother  

•reduce forces acting on the surfaces

•reduce contact between surfaces

•The temperature

there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

hope this

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates