Question about topic:
Why does fungus grow in caves more than out in the open sun?

Background Information:
Fungi enjoy living in damp and dank areas. For example near large water sources, such as, rivers, streams, and springs in the woods. They are unable to be self-sufficient due to being unable to produce their own food independently with photosynthesis. They must absorb nutrients vital to sustain themselves that is most readily found in woods or forests with water sources in or near by them. The fallen leaves and flowing water bring many nutrients to them through the flow of the water as well as the decay of the leaves that contain some of the nutrients of the tree it once was a part of. They are also capable of living inside plants and animals. Also aiding in the decomposition and fertilization, fungi help decompose plant and animal materials (i.e. waste, flesh, etc.).

My hypothesis:
I hypothesize that fungi grow in dark areas with water sources and other miscellaneous animal traffic due to the independence from the sun and animal traffic leaving waste and other materials as they come and go.

Experiment:
The experiment is to first purchase fungi and split them into two equal amounts. Once separated take the first half and plant them next to the flowing water source leaving openly exposed to the sun. Next take the left over half of fungi, plant them in a dark closed in area with the flowing water, such as a wood box flipped upside down. Once that is done set a total trial time of a week, checking in each day to see how they have progressed over the elapsed time.

Expected Results:
I expect that in my test that I will come to the result of the sun’s heat causing the water to precipitate and leave the fungi with no source of nutrients killing the fungi, while the fungi put in the enclosed area that has minimal light and as the same water source will thrive with the moisture being not as readily able to precipitate as the fungi in the sun.

What would the results mean?
These results would prove my conclusion was, in fact, correct. The lower temperature as well as the higher moisture content and minimal sun allowed the fungi to grow and thrive in this environment. The fungi placed in the area exposed to the sun died as I predicted because the sun was making the water precipitate faster than the fungi could absorb the nutrients they needed. The sun also caused the water content of the fungi to decrease to a fatal amount whether there was an abundance of water to counter act the precipitating water from the water source.