Answer:
Draw the vector triangle (head to tail)
Let 8 be adjacent and 4 the opposite side
tan theta = 4 / 8 = .5
theta = 26.6 deg
The following is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
That is from our solar system
Explanation:
Answer: heat
Insulation Traps Heat. Keeping the cold air out