<span>Carbon dioxide is a colorless and odorless gas that is vital to life on Earth. This naturally occurring chemical compound is made up of a carbon atom covalently double bonded to two oxygen atoms. Carbon dioxide exists in Earth's atmosphere as a trace gas at a concentration of about 0.04 percent by volume. Natural sources include volcanoes, hot springs and geysers, and it is freed from carbonate rocks by dissolution in water and acids. Because carbon dioxide is soluble in water, it occurs naturally in groundwater, rivers and lakes, in ice caps and glaciers and also in seawater. It is present in deposits of petroleum and natural gas.</span>
B.
So in the diagram, you can see that the water is evaporating. To make the water change state, you must break the bonds between the water molecules in the liquid and make it a gas. Therefore that answer is B
A proton has a positive charge and is in the nucleus.
You can also find photosynthesis, the carbon cycle, the water cycle and others
<span>In contrast to a cerebral concussion, a cerebral contusion </span>involves physical injury to the brain tissue. Cerebral Concussion is a <span>Traumatic brain injury.</span>
