I'm assuming you meant subsistence farming? If so then yes, it would be a large problem because they would then not have enough food to feed themselves.
<span>C) the presence of unique species in remote locations, such as Australia and New Zealand.</span>
Answer:
It's B, because it has everything needed for an economy.
Explanation:
C. Ultraviolet light shining on the minerals will cause them to give off visible light.
Thermosphere is the answer