Because the sun adds light to the clear bubble
the answer is b, faster through steel than through air.
<span>Carrying capacity is how much population a certain region of the environment can contain, in other words. If population goes over carrying capacity, then there is more competition for resources.
I got this information from https://answers.yahoo.com/question/index?qid=20111030163601AASX6we
I hope this helps:)</span>
30-50%
30% in the winter
50% in the summer