Mountains determine wind flow, as well as serving as a cloud break. Depending on which side of the mountain you’re on, you will either have a mostly dry, dead region. Or a moist, fertile region.
Is it a question or ... no ?
All their children will have heterozygous genes because squidward is "purebred", or homozygous dominant. His wife has to be homozygous recessive for a recessive trait to show up. Every time you cross a homozygous dominant trait with a homozygous recessive trait, you will get heterozygous kids. This means all of them will have light blue skin.