Answer:
However, punctuated equilibrium is any sudden, rapid change in a species and can also be the result of other causes, such as <u>huge and sudden changes in the environment that result in more rapid changes in the organisms through harsher selection.</u>
There must be a change in the chemical composition of the substance and the change is highly irreversible
Matter can change from one state to another when thermal energy is absorbed or released. A great example is Ice having its state changed to the liquid that is WATER. When ice is heated, it absorbs thermal energy and its temperature rises. At some point, the temperature stops rising and the ice begins to change to water, a liquid. As we all know, The change from the solid state to the liquid state is called melting.
Answer:
Dry air is a mechanical mixture of nitrogen, oxygen, argon and several other gases in minor amounts.
Explanation:
