The New Moon Happens About Once a Month, and Is

question 79

Multiple Choice

The new Moon happens about once a month, and is often described as happening when theMoon passes between the Sun and the Earth. Why isn't there an eclipse during every new Moon?

• A)The apparent size of the Moon is only occasionally large enough to block the Sun.
• B)The Moon is not actually directly between the Earth and the Sun during the new Moonbecause its orbit is tilted relative to the ecliptic plane.
• C)The Moon is not actually directly between the Earth and the Sun during the new Moonbecause its orbit is tilted relative to the celestial equator.
• D)The Moon can only block the Sun when it is furthest away from Earth, and most new Moonshappen when the Moon is at another place on its orbit.

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Definitions:

Pure Competition

A market structure characterized by a large number of small firms selling identical products, with no single seller having a significant influence on market price.

Oligopoly

A market structure characterized by a small number of large firms dominating the market, leading to limited competition.

Mutually Cancelling Advertising

Mutually cancelling advertising refers to a situation where the competitive advertising efforts of firms negate each other's impact, leading to no significant change in market share.

Economic Efficiency

A state in which resources are allocated in the most beneficial way, maximizing output while minimizing waste and inefficiency.