<span>4) Formation of a gas
When methane burns, it produces the gases water vapor and carbon dioxide.
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The electromagnetic that has a shorter wavelength is ultraviolet (UV)
Because the polar regions receive low-angle insolation.
Insolation is the amount of solar radiation received by a given area. The Sun is always low on the horizon. The low Sun angle makes the beam of solar radiation to travel a longer distance from upper troposphere to reach earth's surface as compared to when it is directly overhead. In this case, the radiations are scattered and reflected more by the atmosphere and spread over a larger area. Thus, the intensity of solar radiation is very less at polar regions than near the equatorial region. This is the reason of very cold climates at polar regions.
<span>A. An impulse of a force changes the momentum of a body and has the same units and dimensions as momentum.</span>
