The answer is Have a large surface area on
which chemical enzymes in the digestive system can act on it<span>. This increases the rate of digestion
and absorption of the nutrients. The smaller an object is, the larger the
surface area to volume ration it has compared to relatively larger objects.</span>
<span>Mechanical digestion, the process of breaking down large chunks of food into smaller pieces, is important pieces of food are more readily digested through chemical digestion. The mechanical digestion begins with chewing. The action of chewing mechanically breaks down very large aggregates of food molecules into smaller particles. This results in the food having increased surface area, as important contributing factor to good digestion.</span>
Explanation: Runoff from cars and other pollutants usually flow off of roads into rivers or streams that usually lead into bigger bodies of water such as oceans.
you add app all the numbers for the 1 column and divide by 7 then you do the same for the other column then subtract the totals from both to get the answer