Windmills that generate electricity are being
built in coastal areas. the main benefit of these
windmills is that they
(1) produce finite resources
(2) reduce dependency on fuels that cause air
pollution
(3) absorb the noise of passing boats
(4) maintain the salt concentration in the ocean

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)