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Winter and summer differ in length on Mars because of its elliptical orbit.
Wireless Mobile Phone Market
Refers to the sector of the economy that is involved in the manufacturing, distribution, and sale of mobile phones and services without the use of wires or cables.
U.S. Subscribers
Individuals or entities in the United States that have signed up to receive services or products on a recurring basis.
Oligopoly
A market structure dominated by a small number of large firms, leading to limited competition and often resulting in firms having significant control over prices and market share.
Entertainment Industry
A sector of the economy focused on the creation and distribution of entertainment content, such as movies, music, and video games.
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