Answer:
I think its A
Explanation:
Because the reason why airplane have closed windows is because we can't breathe in carbon dioxide when we go up. Of course there is oxygen just not a lot as we go up. Why would there be helium in the air? We would sound weird when we skydive.
Plankton.......................................
It gets smaller because that's what Lynx eat. If their food population goes down, they can't eat. So the Lynx might die.
Monosaccharides<span> (e.g. glucose) and disaccharides (e.g. sucrose) are relatively small molecules. They are often called sugars. Other carbohydrate molecules are very large (polysaccharides such as </span>starch<span> and cellulose).</span>
Because fish need light to see