If a hot gas cloud is moving toward us, the frequency of the emission lines will be more elevated than those of a gas cloud that is inert or stationary.
<h3>What are emission lines?</h3>
Emission lines are indicative of a bright line in the spectrum of emission related to gas or vapor.
Thus it is correct to state that If a hot gas cloud is moving toward us, the frequency of the emission lines will be more elevated than those of a gas cloud that is inert or stationary. This is because gases expand as they get hotter.
Learn more about emission lines at;
brainly.com/question/24176807
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The sea served as anchient Greece's highway because it was the fastest way to get around
Answer:
The demand for natural resources increases under industrialisation because<u> it makes greater use of energy produced through thermal power</u>, which requires large quantities of coal, or hydroelectric power which relies on water.
Explanation:
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