Low-mass stars may become hundreds of times more luminous as giants than they were on the main sequence.
Indicate whether the statement is true or false
Question 2
From the horizon to the observer's zenith is an angle of
A) 23.5 degrees for observers at the Tropics of Cancer and Capricorn.
B) 30 degrees for observers at a latitude of 30 degrees north.
C) 90 degrees for everyone on the Earth.
D) 66.5 degrees for everyone on the Earth.
E) 0.0 degrees for an observer at the Earth's north pole.
