Answer:
The albedo temperature for Mars and Venus are 210K and 184 K respectively.Mars albedo temperature is closer to its black body temperature such that the Venus has more albedo.Thus there is a chance that Mars would have had life in their history.
Explanation:
The albedo temperature is given as
![Te =\left [\dfrac{L(1-a)}{ (16\pi \sigma D^2}\right]^{1/4}](https://tex.z-dn.net/?f=Te%20%3D%5Cleft%20%5B%5Cdfrac%7BL%281-a%29%7D%7B%20%2816%5Cpi%20%5Csigma%20D%5E2%7D%5Cright%5D%5E%7B1%2F4%7D)
Here
L = Solar luminosity = 3.846*1026 W m-2 K-4
D = distance from Sun
σ = the Stefan-Boltzman constant = 5.6704 * 10-8 W
a is the albedo constant whose value for Mars is 0.250 while for Venus it is 0.900
So the albedo temperature is given as
Venus: 184 K
Mars: 210 K
The black body temperature is given as
![Te =\left [\dfrac{L}{ (16\pi \sigma D^2}\right]^{1/4}](https://tex.z-dn.net/?f=Te%20%3D%5Cleft%20%5B%5Cdfrac%7BL%7D%7B%20%2816%5Cpi%20%5Csigma%20D%5E2%7D%5Cright%5D%5E%7B1%2F4%7D)
By substitution of the values, the black body temperature for Venus and Mars are as
Venus: 327 K
Mars: 225 K
Mars albedo temperature is closer to its black body temperature such that the Venus has more albedo.
Thus there is a chance that Mars would have had life in their history.
Air rises at the equator, leading to low pressure and rainfall. Global atmospheric circulation creates winds across the planet and leads to areas of high rainfall, like the tropical rainforests, and areas of dry air, like deserts.
Internation Date Line. The International Date Line<span> is an imaginary line that crosses the </span>surface of the Earth<span> and goes from the </span>North Pole<span> to the </span>South Pole, and it signifies<span> the change of one </span>calendar day<span> to the next. It crosses the middle of the </span>Pacific Ocean<span>, over the </span>180° line of longitude<span> expect for some territories and island groups.</span>
The subcontinent has fewer natural barriers to invasion than East Asia.
There are lot of educated people in India who are fluent in English.
Explanation:
The Indian subcontinent and East Asia are both regions in Asia. They border with each other, with the border being on the northern part of the Indian subcontinent and southwestern part of East Asia. These two regions have lot of differences between them, including culture, languages, religion, lifestyle, politics, geography etc., but they also have several similarities too.
One similarity of these two regions is that both of them have natural barriers, which throughout history have helped a lot in their protection. The Indian subcontinent has only two natural barriers, the Himalayas, which are massive and occupy almost the entirety of the northern part of the region, and the ocean. East Asia has multiple natural barriers, including the Himalayas, Taklamakan Desert, several seas, and the taiga.
One big difference between the regions is that in India there are much higher percentage of educated people that are fluent in English than in East Asia. This is mostly because India is a former British colony, so the English language is a legacy from the colonialism, but it is also seen as advantageous when looking for jobs.
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