Rocks. Because the air water and soil are part of carbon.
I believe the first one is chemical, second one is mechanical, third one is mechanical and fourth one is chemical.
Answer:
option C is the correct answer
Explanation:
it belongs to alkanes series
for alkane series the formula is
C n H 2n+2
so the formula of b utane is
C 4 H 10
Low friction between you/the ski vs the snow.
if you think about it its kinda like you and a slip and slide...water helps decrease friction so you slide (snow does the same for the skiing) but without it you just flop and don't go anywhere (very easily anyway).
2 liter
Because the volume is 2 liter and the pressure and temperature are constant so nothing is happening.