 What is Evans' primary dilemma?
Evans, who had no watch, thought of the time as a quarter after Australia. Evans was a prospector, and like all prospectors, a sort of jackknife geologist, selenologist, rather. Evans sealed the turbine from the rest of the steam system by closing the shut-off valves. Morning to him had no meaning at all, but he thought in the strictest sense that it would be morning on the Moon for another week. The solar furnace was a rough parabola of mirrors used to focus the sun's heat on anything that it was desirable to heat. After the sun rose, Evans returned to the lava cave that he had been exploring when the meteor hit. All of these needed water to form, and their existence on the Moon puzzled him for a while.
 If he is to discover a new water source, he must utilize his low, existing source to find it
 He has a limited amount of time until the next meteor shower hits and permanently destroys his equipment  In submitting a claim to the lava mine, he will attract violence from those desperate for water  By entering into an unknown cave, he is possibly exposing himself to lava, which has the capacity to melt his space suit  If he is to discover a new water source, he must utilize his low, existing source to find it