Please using Geographical knowledge to slove it. 1.Energy from the sun is transf
ID: 1118 • Letter: P
Question
Please using Geographical knowledge to slove it.
1.Energy from the sun is transformed into other forms of energy in the Farth System. In the atmosphere these other forms include the energy of wind, and the ( )stored in water vapor.? The answer is C)
a.albedo
b.infrared rediation
c.latent heat of evaporation
d.ozone
Please explain why select the answer is C?
2.On the June solstice( ) (The answer is D)
a.the South Pole experiences 24 hours of daylight.
b.the Southern Hemisphere receives more energy than the Northern Hemisphere
c.the subsolar point is on the Tropic of Capricorn
d.the subsolar point is 23.5 degree North
Explain why is answer is D?
Explanation / Answer
(1) The solar energy reflected by Earth's surface is absorbed, scattered, or transmitted by the atmosphere. Energy from the Sun is transformed into other forms of energy in the Earth System. In the atmosphere these other forms include thermal energy of gas molecules, the kinetic energy of wind, and the latent heat of evaporation stored in water vapor. As the incoming and outgoing energy at the Earth’s surface must balance, the flow of energy into the atmosphere must be balanced by an equal flow of energy out of the atmosphere and back to space. Solar energy drives many chemical, biological, and physical processes that affect Earth's atmosphere. These include processes such as photosynthesis, evaporation of liquid water to produce water vapor, formation of smog, and the formation and destruction of ozone.
(2) The orbit of the Earth around the Sun is called an Earth revolution. This earth takes 365.26 days to complete one cycle. The Earth's orbit around the Sun is not circular, but oval or elliptical. An elliptical orbit causes the Earth's distance from the Sun to vary over a year. Yet, this phenomenon is not responsible for the Earth’s seasons. The inclination of the Earth's axis means that at different locations on its orbit around the sun, different parts of the earth are tilted toward the sun, and the part that is tilted toward the sun is the part that is having summer. The ecliptic plane can be defined as a two-dimensional flat surface that geometrically intersects the Earth's orbital path around the Sun. On this plane, the Earth's axis is not at right angles to this surface, but inclined at an angle of about 23.5° from the perpendicular. The angle of the Earth's axis in relation to the ecliptic plane and the North Star on June solstice remains unchanged. Yet, the relative position of the Earth's axis to the Sun does change during this.
At one point in its orbit, the northern part of the earth has its maximum inclination toward the sun. Since the earth's axis is tilted 23 ½ degrees, then on this particular day, the sun's rays are striking the earth directly at a latitude approximately 23 ½ degrees north of the equator (that is, the sun's rays are coming in at an angle of 90 degrees here; this is the subsolar point). This occurs on about June 21 or 22 each year, and the day is known as the Summer Solstice (summer for those who live in the Northern Hemisphere).