Suppose Earth's atmosphere had no greenhouse gases. Then Earth's average surface temperature would be
A) 250 K, which is well below freezing.
B) 273 K, or about the freezing point for water.
C) 283 K, or about 5 K cooler than it is now.
D) 288 K, or about the same as it is now.
E) 293 K, or about 5 K warmer than it is now.
Question 2
Mars' magnetic field is so weak because
A) it spins much slower than Earth does.
B) it core may no longer be molten.
C) its core contains less iron than our own.
D) Both B and C are probable.
E) All of the above are correct.
From space earth shows itself as a planet covered mostly by water.
Oceanic circulation, which is driven mainly by the prevailing winds, moderates earth's climate.
Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do
Temperature Conversions
Taste receptors, taste buds, and papillae on the surface of the tongue. Two sizes of papillae are ...
Major Climate Zones and Surface Currents