Oxygen makes it human capable of breathing in earth that's why when there is oxygen, there is life.
Life. Earth has an atmosphere that's rich in oxygen, and a lot of water.
It is easy there is oxygen and it is not to far away from the sun and too close
The earth formed and let of carbon, oxygen, and other gases. Those gases collected and formed the atmosphere. When the Earth cooled, some hydrogen and oxygen bonded to make water vapor. Soon we had lakes, then oceans, and then life.
No, it will not ensure that but kill us. It is because the oxygen creating trees take up carbon dioxide to make oxygen.
The oceans and rivers make it sutable
Yes, trees make a difference. Without trees, birds, insects, and other creatures wouldn't have any shelter. Plus, trees hold oxygen in their leaves. Without oxygen, their would be no life on earth.
Life on Earth would end. A by-product of photosynthesis is oxygen, and only plants produce it. There would be no oxygen. In addition, all life forms rely in some way on plants for food.
There is air, of course, surrounding Earth, because it was placed there, but any of the elements that combine to make an atmosphere have dissolved or dissipated out into the vastness of space.
No. Most of the oxygen on Earth is bound up in the silicate minerals that make up most of Earth's rocks.
The most abundant element on earth is Oxygen. But due to its high reactivity, most oxygen occurs in combined state, generally in oxides.
sea organisms
No, especially not carbon dioxide, because plants need carbon dioxide to help make food, and animals depend on plants for food and oxygen. Plants gives off oxygen as a waste matter