It is useful to life because all living organisms need it. In a gas form.
Ozone is useful. The oxygen forms again transforms to form ozone.
the definition of an element is a useful resource that we use in our daily life an example such as oxygen if we did not have oxygen we would die
The best known molecule that Oxygen forms is Water. Water is composed of 2 Hydrogen Atom that have combined with 1 Oxygen atom to provide a useful substance
First of all there is no life of any form on the moon, the reason is there is no oxygen there.
plants produce oxygen by using carbon dioxide for photosynthesis, which is how plants get energy. Both are essential in the form of water to sustain life in plants. Oxygen also helps in aerobic form of respiration.
Internal fertilization is a useful adaptation for life on land. This is because the embryo can develop in an aqueous environment where oxygen is more available and nutrients are more soluble.
It is useful because we can breathe it.
In everyday life it is a gas. Oxygen is present in all living things: we would not survive without it.
A life-form that lives in an oxygen-free environment is described as "anaerobic."
It is produced by the photosynthesis of plant life.
Respiration releases energy for use in life processes. There are two types of respiration, aerobic (uses oxygen) and anaerobic (does not use oxygen). Respiration can produce useful products that have uses in a range of industries.
The comparative form of "useful" is "more useful."