An amount of nitrogen undergoes a physical change and increases its volume. What can be known about this physical change ? A) The boiling point of the nitrogen increased.

B) The mass of nitrogen increased.

C) The color changed.

D) The density changed.

Amethod of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.

In psychology, a person who thinks that upbringing and environment are much more important than genes is more on the side of in the nature versus nurture debate.the answer in the blank is letter b which is nature. they are more on the nature and environmental side than the genetic side of species.