Examlex
Nitrogen and oxygen make up <50% of the atmosphere.
Machinery
Refers to machines or automated systems that contribute to the manufacturing or production process.
United States
A country located in North America consisting of 50 states and is known for its large size and diverse population.
Petroleum
A naturally occurring, yellowish-black liquid found in geological formations beneath the Earth's surface, commonly refined into various types of fuels.
Opportunity Cost
The cost of choosing one option over another, representing the benefits foregone from not choosing the next best alternative.
Q20: Anticlines and domes create common oil traps.
Q25: The United States has enormous quantities of
Q33: The Moon and Mercury lack _.<br>A) a
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