I'll figure this out. Answers in comments
You could talk about pollution, trash on beaches...etc
Answer:
D
Explanation:
D is the only option where the cause of the pollution is not something man-made.
Answer:
If you do the punnet square, This is would you could get, and this could determine whether the cow would be hornless or horned. In this case hornless because it is the donminint trait as well. (H)
Explanation:
h h
H Hh Hh
H Hh Hh