The albedo of soil is relatively _______(1)________ thus it ______(2)______ most
ID: 152955 • Letter: T
Question
The albedo of soil is relatively _______(1)________ thus it ______(2)______ most solar radiation that strikes it.
(1) high, (2) reflects
(1) high, (2) absorbs
(1) low, (2) reflects
(1) low, (2) absorbs
None of the above
Which statement is true?
Declination can occur in Oklahoma City, Oklahoma
Tilt of the Earth is 33.5°
The equinox occurs once per year
The Poles are tilted most toward or away from the Sun on the Solstices
All of the above is true
A.(1) high, (2) reflects
B.(1) high, (2) absorbs
C.(1) low, (2) reflects
D.(1) low, (2) absorbs
E.None of the above
Which statement is true?
A.Declination can occur in Oklahoma City, Oklahoma
B.Tilt of the Earth is 33.5°
C.The equinox occurs once per year
D.The Poles are tilted most toward or away from the Sun on the Solstices
E.All of the above is true
Explanation / Answer
1. ANSWER IS: E. (1) low, (2) absorbs
EXPLANATION:
The albedo of soil is relatively low thus it absorbs most solar radiation that strikes it.
Albedo is defined as % of sunlight reflected from a surface. More albedo, means the surface is as less sunlight is absorbed and more is reflected.
Land areas albedo such as soil or sand, is relatively low and snow ice has more albedo as solids absorbs heat energy quickly ans low albedo means low reflection and high absorption.
The more the soil moisture, the darker the color and thus low albedo.
Areas having dark soil or forested areas absorb more radiation and thus low albedos.
2. Which statement is true?
ANSWER IS: D. The Poles are tilted most toward or away from the Sun on the Solstices
EXPLANATION:
Tilt of the Earth is an angle of 23.5° and not at 33.5° and seasons are formed by the changing angles (tilted axis).
Equinoxes occurs two times in a year and not once a year, when day and night of equal length. Two equinox are in september and in march. Here, sun shines directly on the equator and therefore, length of day and night is equal.
The Poles are tilted most toward or away from the Sun on the Solstices
The north pole is tilted away from the Sun and the south pole towards it.
In summer, days are longer. When the North Pole tilted towards Sun, then northern hemisphere receive more sunlight. When it is tilted away from the Sun, then it results in winter in the northern hemisphere. This is because more earth is not round in shape, it is elliptical, so when it is tilted more towards North then more sunlight and summers formed and if away from sunlight then winter formed.
When Earth's North Pole is tilted more to sun is called the summer solstice, longest day of the year in northern hemisphere.
The winter solstice, shortest day of the year, Earth's North Pole is tilted away from the Sun.
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