Answer:
if you live in the northern hemishpere the earth is closer to the sun during winter but the earth is tilted so we are away from the sun making it winter while the southern hemisphere is closer. and when its our summer the earth is further away but the earth is tilted to make us closer than the southern hemisphere
At both new and full moons (lunar phases) the tides are most pronounced (for example, the highest high tides).
Answer:
2x+9 when x equals 3 is 2*3+9
=15
Explanation:

I believe the answer is C! The opposite sides are parallel
The answer is deep sea trenches