Anonymous

They are a pollutant and green house gases and could cause the earth to heat up. Methane is found in abundance under the ocean floor and in the north in the frozen tundra.

Anonymous

Humans and almost all other life on Earth would die - methane and ammonia are poisons.

Anonymous

It would be very hard to breathe.

Anonymous

We would encounter a Mass Extinction Event of Flora and Fauna that would virtually turn the Earth into a lifeless planet.

Anonymous

Our atmosphere would freeze Survival of the warmest

Anonymous

Methane acts as a greenhouse gas so it would increase the planet's temperature. By how much would depend on the quantity of methane. Ammonia is poisonous so it would not provide a suitable atmosphere for life.