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.
<span>Human resources is a term used to describe the individuals who make up the workforce of an organization. Human resources is also the name of the function within an organization charged with the overall responsibility for implementing strategies and policies relating to the management of individuals (i.e. the human resources).</span>
Answer:
<u>D. Gradient decreases, discharge increases.</u>
Explanation:
- As steam is a body of water that carries rock particles and dissolved ions, discharge is measured in terms of volume/time (m3/sec). So when a river discharges its flow from a headwater to its mouth the velocity increases in the downstream direction.
- Thus the river load-carrying capacity increases downwards and so does the discharge rate. The discharge rate can also be influenced due to the rainfall patterns, volume of water and velocity of flow.
- Rock types also impact the streamflow if it is a porous rock, the surface will absorb more of moisture content and comparative more will be the water penetration towers the mouth of the flow.
Not enough oxygen
rainforests will turn into desserts like the Sahara dessert which use to be a tropical place.
Answer:
The correct order is: 6, 2, 5, 3, 1, 4
Explanation:
Siberian traps refers to the moment when the volcanoes of Siberia expelled a large amount of CO2 and HCl gases that are highly toxic and that promoted a mass extinction, that is, it caused the death of several living beings in a short period of time. This happened over 250 years ago and was caused by the steps:
It all started when volcanoes expelled large amounts of carbon dioxide into the atmosphere, which contaminated the atmosphere and caused a rise in temperature, creating strong global warming. This caused a great warming of the surface of the seas, which caused them to evaporate in great intensity and lose large amounts of oxygen and become anaerobic environments, conducive to the growth of bacteria producing hydrogen sulfide, which is a very toxic gas. This gas was released into the atmosphere, killing several living beings intoxicated with the contaminated air.
