The summer solstice (at the start of summer) is the point on the ecliptic where the Sun
a. crosses the celestial equator moving north.
b. crosses the celestial equator moving south.
c. is farthest north of the celestial equator halting its northward movement.
d. is farthest south of the celestial equator halting its southward movement.
Question 2Which of the following causes seasons on Earth?
a. Earth being closer to the Sun during our summer and farther during our winter
b. the Sun's varying light output
c. the tilt of Earth's axis
d. the eleven-year sunspot cycle
Question 3When it is winter in the northern hemisphere, it is ____ in the southern hemisphere.
a. winter
b. summer
c. spring
d. fall
Question 4In the summer in the northern hemisphere,
a. the Earth is closer to the Sun.
b. the Earth's northern hemisphere is tilted toward the Sun.
c. the Earth's northern hemisphere is tilted away from the Sun.
Question 5The ____ is 18 years and 11 days long.
a. sidereal period
b. synodic period
c. eclipse season
d. Saros cycle
e. eclipse year
Question 6In Brazil, the longest period of daylight and the start of summer occurs during the month of
a. December.
b. March.
c. September.
d. June.
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