Above about 100 km, the high-energy portion of the Sun's radiation spectrum breaks down molecules into atoms. What is this part of Earth's atmosphere called?
A) the troposphere
B) the stratosphere
C) the mesosphere
D) the ionosphere
E) the magnetosphere
Question 2
If your astrological sign is Aries, the Sun should be in the constellation Aries on your birthday. The dates, according to astrological tradition, during which the Sun is in the constellation Aries are March 21 to April 20th.
In which constellation is the Sun actually in, during this time period? A) Aquarius
B) Pisces
C) Aries
D) Taurus
E) Gemini
Striking examples where high surface area releases heat.
(a) With few ticks, moose retain a brown coat; (b) at high numbers of ticks, moose self-groom, destr
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