Spooner and Wendy both have a hand with heterozygous genotypes (Hh).

well first you need the sample of the temperature and gas level. i couldnt write a hypothesis unless i had some data. i think temperature changes will effect volumes of gas because gas changed into a solid or liquid at specific temperatures.

answer; (b) clear with a slight blue tint;

i would answer but it has no question attached to be answer sorry kido