Our seasons are caused by
a. the amount of cloud cover during the different parts of the year.
b. the angle at which sunlight reaches Earth.
c. the proximity to the poles.
d. the constellation of Earth, Sun, and Moon.
e. differences in altitude.
Question 2
For maximum winter warmth, in the Northern Hemisphere, large windows in a house should face
a. north.
b. south.
c. east.
d. west.
e. any direction.