One of the key elements in creating a green economy is the construction of . a.
green buildings
c.
solar panels
b.
a new tax system
d.
a new workforce

A One of the key elements in creating a green economy is the construction of green buildings.  

Explanation:

Any economy relies on businesses and buildings, so a green economy is going to need green buildings to support a green economy as well.

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)

2%? i tried finding the exact sorry if it's not 100% correct ; -;