The northern hemisphere is during the

The Northern hemisphere is tilted toward the sun, and during that time, the Southern Hemisphere is tilted away from the sun.

a boiling water reactor does not boil the water. a pressurized water reactor boils the water faster. a pressurized water reactor is heated directly by the core. a pressurized water reactor does not use fission.

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.