Which of these human traits is altered by variations in environment?

a height

b hairline

c blood type

d smile dimples

a time line cause it goes from 685 to 978

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.

the main thing i would use is bricks because if there is a hurricane, there is a great possibility for the house to still stand. and i would also use plexiglass windows instead of regular windows because plexiglass isn't prone to breaking.