There is more traffic between 7:00 am and 8:am in the morning because most people start at 8:00 am. This would be

rush hour.

Explanation:

'Rush hour' is what you call the time of day when traffic is the heaviest.

Explanation:

Because this would be the office,college and school time for them.

the child will have heterozygous dominant chromosomes as characters of his father are dominant over the characters of his mother.

the child is heterozygous

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)