Oxygen
Water vapor is the atmospheric gas that exists in variable amounts. Its concentration can vary depending on factors such as temperature and location.
The dominant atmospheric gas on Mars is carbon dioxide (CO2), making up about 95% of the planet's atmosphere.
carbon dioxide
Ozone is an atmospheric gas that can vary significantly in concentration from one location to another due to local sources of pollution, suchjson emissions from vehicles and industrial activities. This variation can lead to differences in air quality and health impacts across different regions.
Heterotrophs are living things that have to eat other living things to survive. That would be an animal, since plants make their own food.Heterotrophs that eat other heterotrophs would be animals that eat other animals. Heterotrophs that eat only other heterotrophs would be a carnivore. If the heterotroph eats both heterotrophs (animals) and autotrophs (plants), that would describe an omnivore.
nutrient molecules are broken down
The most common atmospheric gas is nitrogen, which makes up about 78% of the Earth's atmosphere.
Xenon is in the gas phase at room temperature and normal atmospheric pressure.
It never was - Nitrogen is the "major gas".
Water vapor is the atmospheric gas that exists in variable amounts. Its concentration can vary depending on factors such as temperature and location.
CO2?
co2
In atmospheric clouds: water.
The dominant atmospheric gas on Mars is carbon dioxide (CO2), making up about 95% of the planet's atmosphere.
carbon dioxide
evaporation
Heterotrophs.