Which of the following is not one of the earth's hemispheres?
a. northern hemisphere
b. eastern hemisphere
c. southern hemisphere
d. southwestern hemisphere

Heisphere means "half a sphere".

We can divide the Earth into two vertically, giving us Northern and Southern Hemisphere or Horizontally - Eastern and Western Hemisphere.

Since we have all the four hemipsheres (Northern and Southern Hemisphere and Eastern and Western Hemisphere) we know which one isn't a hemisphere: d. Southwestern Hemisphere

2. x2 + 8x + 12 = 0 to prove: x = -6 or x = -2

Answerdistinguish between the mercalli scale and the richter scale;