Oxygen
Beacuse every living thing on Earth needs to breath.
Today an element is a chemical concept which refers to a substances formed by the same atoms (oxygen hydrogen, calcium, carbon, etc.) and which are the constituent elements of compound molecules. In antiquity , the elements were air, earth, water and fire.
Earth, air, fire and water are the elements
oxygen
In a vacuum. like in outer space, all substances fall at the same rate. Here on earth, the rate of falling is influenced by air resistance. A feather has 'way more air resistance than a ball of steel, for example, so falls slower.
c20
Sunlight, CO2 (air), and water (H2O).
A lot of substances are not air pollutant. You must specify which kind of substance do you refer as a probable air pollutant.
Secondary pollutants are the substances that pollute the air only after they interact with other substance in the Earth's environment. Primary pollutants are injected into the atmosphere directly.
essential elements for life on Earth. Air provides oxygen for respiration while water is essential for hydration and various biological processes. Both substances play critical roles in sustaining life for most organisms on the planet.
There would be no life on Earth
Beacuse earth has water air and Sun the moon has no air or no Sun or water only earth is a life planets the other planets are the same like moon they had no air or Sun and water
earth has air , water and life.
For me, it is Air pollution. Which the air we breathe in order to sustain life is being contaminated by pollutants and other chemical substances as well as hazardous substances.
No, we will not run out of air on Earth. The Earth's atmosphere contains a constant supply of oxygen and other gases that support life.
There's no water, life, or air on the moon.
Some do some don't, Earth does but not many have air or water to have life on them.