Different types of rocks weather at different rates. More resistant types of rocks will remain longer.  RJ diamond is more resistant to weathering while Tony has some sandstone which is less resistant to weathering. Whose rock will likely not last as long RJ's or Tony's?
Tony's

Genotypes with greater fitness produce more offspring and pass more copies of their alleles to the next generation.  If a dog is extremely unfit and unhealthy breeders will want it to have more offspring or less offspring?
less offspring

Most nutrients are washed into ocean water from land. Therefore, water closer to shore tends to have more nutrients.  If Mona is in her sailboat and she takes a sample of the water far away from shore to test for nutrients and compares it to sample that she took while close to the shore, which sample will have fewer nutrients close to shore or far from shore?
far from shore