More questions on Mars.
It sits above a hot spot in the planet's mantle.
It has very steep slopes.
It can erupt only briefly before being dragged off the hot spot.
It cannot get as high as Mt. Everest bfore the thin crust starts slumping.
It cannot grow very large, for it has a very short span of eruption.
Valles Marineris
Valles Grande
The "canali" observed by Schiaparelli and Lowell
All of the above
None of the above
Runoff channels
Outflow channels
"gullies" in craters walls
All of the above
None of the above
In "permafrost" layers
In permanently frozen "residual" ice caps at the north and south poles
In trace amount in atmospheric clouds
All of the above
None of the above
Dust layers due to very different winter vs summer patterns of dust storms
Layers of frozen water
Layers of frozen carbon dioxide (often called "dry ice")
All of the above
None of the above
Carbon dioxide in Mars' atomosphere reflects dominantly red light
The surface temperature of Mars means that the planet radiates dominantly in the "red" part of the spectrum.
Iron(rust-like) compounds in the surface material of the planet.
All of the above
None of the above
"greenhouse" effect only works when there is significant cloud cover on the planet.
"greenhouse" effect only works when the "greenhouse gases" are less than a few percent of the total atmosphere on the planet.
Because the overall thin atmosphere there are simply not enough "greenhouse gases" to trap the infrared radiation from the planet surface.
All of the above
None of the above
Lake Superior
Texas
North America
Virtually the entire planet
All of the above
In polar "ice" caps
Absorbed in the surface rocks
All of the above
None of the above
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