Expanding Universe hypothesis is also known as:

[A] Nebular theory
[B] Big Bang theory
[C] Steady state theory
[D] None of the above

Who propounded the Nebula hypothesis theory in relation to the origin of the earth? 

Based on our current theory of earth's formation, the water we drink comes from

All of the following is true in regard to the earth's radiation balance except?

(a) at around 35°, incoming insolation is roughly balanced with outgoing longwave radiation.

(b) poleward of 35° regions emit more outgoing longwave radiation than they receive as insolation.

(c) outgoing longwave radiation increases poleward in regular increments, peaking at the poles.

(d) Equator, tropics, and subtropics receive more insolation than what they emit as outgoing longwave radiation.