The future of the Universe will be determined by the struggle between the momentum of its expansion and the pull of gravity. ... The vertical scale indicates the size of the Universe. For the next several billion years, the expansion of the Universe gradually slowed down due to the effects of gravity on matter.
Explanation:
Indirect cross-contamination - where something helps the organisms move from one place to another. We call these 'vehicles' of contamination. Just as you would get in your car or on a bus to travel from one place to another, micro-organisms will hop on to something to travel from raw to cooked food.
