I noticed that a force is needed to cause a change in velocity of the object and a weaker force caused a change in the velocity of the object.

answer; ///as energy flows through an ecosystem,energy (decreases) at each

c should be the answer

well first you need the sample of the temperature and gas level. i couldnt write a hypothesis unless i had some data. i think temperature changes will effect volumes of gas because gas changed into a solid or liquid at specific temperatures.