Answer:
Today, many millions of people live close to volcanoes for this very reason. People live close to volcanoes because Geothermal energy can be harnessed by using the steam from underground which has been heated by the Earth's magma. ... Apart from the volcano itself, hot springs and geysers can also bring in the tourists.
Answer:
Yes, this population lies in Hardy-Weinberg equilibrium as it follows both the principles of Hardy-Weinberg.
Explanation:
Here ,


As per the first principle of hardy Weinberg, the sum of all the alleles at the locus must be equal to 1.
Thus,

Also, as per the second equation of Hardy Weinberg's equation-


Hence, this population lies in Hardy-Weinberg equilibrium as it follows both the principles of Hardy-Weinberg
Diamonds, Corundum, and Topaz would all be able to scratch quartz.
All three minerals above have a more increased number of hardness then quartz