1. Due to the tilt of the Earth's axis, which of the following occurs? (A) the length of daylight and night varies throughout the year, (B) the slant of the sun's rays vary throughout the year (C) the amount of the sun's energy reaching the Earth varies throughout the year or (D) all of these
2. During winter, the sun's rays strike (A) at ore of a slant than during summer, (B) at less of a slant than during summer, (C) perpendicular tot he Earth
3. On December 21st, what season is Alice Springs, a city in the Northern territory of Austrialia experiencing?
Beginning of summmer, winter, fall or spring
4. On June 21st, what season is Portland, Oregon, a city in the northwest region of the United States experiencing?