Answer:
Nitrogen.
Explanation:
Nitrogen is the gas that makes up the highest percentage of air.
Liquids Characteristics,<span> Liquid metal flows to fill the mold. As it cools, it solidifies. Once it is cool enough, it can be removed from the mold as a solid. The ability to flow is one characteristic that is different in solids than liquids. </span>
<span>Organisms in biological ecosystems connect to one another through their need for matter as well as energy. Every organism needs molecules like proteins, carbohydrates, and fats to provide the raw building materials for their cells.</span>
There is Kinetic energy involved in the state something is in. The molecules in a liquid are moving around quicker than those in a solid.
That's one reason.
The ice requires energy to melt. Bonds must be broken to get from a solid to a liquid.