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【单选题】

The Earth’s irregular heating is caused by （）.

A、the time of day

B、the seasons

C、geography

D、All of the above

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更多“The Earth’s irregular heating is caused by （）.”相关的问题
第1题
[单选题] Permanent magnetism is caused by（）.

A、operation of electrical equipment and generators on board ship  B、the earth's magnetic field affecting the ship's hard iron during construction  C、the horizontal component of the earth's magnetic field acting on the horizontal soft iron  D、the vertical component of the earth's magnetic field acting on the vertical soft iron  

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第2题
[单选题] Planetary aberration is due，in part，to（）.

A、refraction of light as it enters the Earth's atmosphere  B、rotation of the Earth on it's axis  C、the body's orbital motion during the time required for its light to reach Earth  D、a false horizon  

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第3题
[单选题] Diurnal aberration is due to（）.

A、motion of the Earth in its orbit  B、rotation of the Earth on its axis  C、the body's orbital motion during the time required for its light to reach the Earth  D、a false horizon  

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第4题
[] What is the basic principle of the magnetic compass?（）

A、A.Magnetic materials of the same polarity repel each other and those of opposite polarity attract  B、B.The Earth's magnetic lines of force are parallel to the surface of the Earth  C、C.Magnetic meridians connect points of equal magnetic variation  D、D.The compass needle(s) will，when properly compensated，lie parallel to the isogonic lines of the Earth  

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第5题
[] What is the basic principle of the magnetic compass（）.

A、A.Magnetic materials of the same polarity repel each other and those of opposite polarity attract  B、B.The Earth's magnetic lines of force are parallel to the surface of the Earth  C、C.Magnetic meridians connect points of equal magnetic variation  D、D.The compass needle（s）will，when properly compensated，lie parallel to the isogonic lines of the Earth  

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第6题
[单选题] The direction of the surface wind is（）.

A、directly from high pressure toward low pressure  B、directly from low pressure toward high pressure  C、from high pressure toward low pressure deflected by the earth's rotation  D、from low pressure toward high pressure deflected by the earth's rotation  

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第7题
[单选题] A mean sun is used as the reference for solar time for three reasons. Which reason is NOT a cause for use of a mean sun?（）

A、The motion of the apparent sun is along the ecliptic  B、Measurement of time is along the celestial equator  C、The speed of the Earth's revolution is not constant  D、There are variations in the Earth's rotational speed  

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第8题
[单选题] Perihelion is the point where the Sun（）.

A、is nearest to the Earth  B、is farthest from the Earth  C、is on the opposite side of the Earth from the Moon  D、and Moon and Earth are in line  

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第9题
[单选题] Deviation in a compass is caused by the（）.

A、vessel's geographic position  B、vessel's heading  C、earth's magnetic field  D、influence of the magnetic materials of the vessel  

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第10题
[单选题] Opposition occurs when（）.

A、the Sun，Earth，and Moon are at right angles  B、the Sun's declination is 0°and is moving south  C、an inferior planet is at the maximum angle to the line of sight to the Sun  D、the Earth is between a planet and the Sun  

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