At the start of WWII nobody expected a Japanese surprise attack in that great of numbers. <span>Also without radar (which was just starting) or someone trailing them- nobody knew where the Japanese fleets were.</span>
government agencies and police forces
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;
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Answer:
The greenhouse effect is a natural process that warms the Earth's surface.
Explanation:
When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. Greenhouse gases are absorbed energy that warms the atmosphere and the surface of the Earth.
