Answer:
Higher the altitude, the thinner the atmosphere gets. The total heat content of a system is directly related to the amount of matter present, so it is cooler at higher elevations.
Here cooler means decrease in temperature.
The term for a large area that has consistent organisms and weather would be a biome. It is a large ecological area where specific species of animals and plants are adapting to the environment. It is characterized by the abiotic factors that are present like the weather, geology and vegetation.
Answer:
The gene is called: HERC2.
Explanation:
"Scientists studying the genetics of eye color have identified that a mutation to a separate, nearby gene called HERC2 is the cause of blue eyes. This alteration switches off OCA2, the gene that determines the amount of the brown pigment melanin that we make. Today, around 20-40% of European people have blue eyes."
I hope this helps!