If earth didn't rotate what would be one major obstacle life would have to overcome

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

The is an estimate of the fewest number of organisms a population needs to avoid extinction. this measurement will most if the number of offspring each female in the population produces increases. if the population's this measurement will most likely increase. 1 population density, minimum viable population, carrying capacity 2 decrease, be unaffected, increase 3 death rate increase, dead rate decrease

What are characteristics of minerals? select 3 choices