When gas is heated electrons are excited for a short while before falling back to a lower energy level.
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Answer:
Explanation: Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat, or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.
Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.
In 1763, at the end of the French and Indian War, the British issued a proclamation, mainly intended to conciliate the Indians by checking the encroachment of settlers on their lands. In the centuries since the proclamation, it has become one of the cornerstones of Native American law in the United States and Canada.
The answer would be Plains. Hope this helps have a good day.