What are the possible genotypes of a person with type b blood? a- bb or bo b- only bb c- bb or ab d- only bo

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

Ricardo notices that when he plays soccer in the rain, his ball does not seem to go as far after a kick. what is the best scientific question that ricardo could ask about this observation? is soccer better played in the rain or sun? how does rain affect the distance a soccer ball can travel? how does rain affect the speed of a soccer ball? is soccer affected by the rain?

What percentage of light hits earth's surface directly?