There would be more hours of sunlight at the equator
They all have different compositions of protons, neutrons, and electrons. This causes variety and makes atoms different so they can make up different substances
Heat from the sun makes it through near the Antarctic (where the hole is) is melting the ice and not allowing some key species to feed. seals don't have ice to come up for air through like normal so polar bears starve. loss of land means less food for a lot of species because the hunting grounds is closing and there is no room to expand.
I believe the answer is tertiary
