Why are scientific explanations subject to change? A) Scientists always need better technology. B) Scientific explanations are only a best guess. C) New scientific explanations are always better than old explanations. D) Scientific explanations are based on new observations and making sense out of those observations.

D. Scientific explanations are based on new observations and making sense out of those observations.

Explanation:

(don't quote me)

chemistry sucks a**

explanation:

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.