which of the following best describes how further studies supported the work done
by max planck in the field of quantum mechanics?

1) james chadwick discovered neutral particles in the nucleus.

2) antoine lavoisier determined the law of conservation of mass.

3) niels bohr determined that electrons inhabit distinct energy levels.

4) joseph proust stated that each compound has a fixed ratio of elements.

How did the boston massacre contribute to the writing of the declaration of independence? a. many colonists began to see the british government as a source of protection. b. many colonists began to see the british government as a supporter of free speech. c. many colonists began to oppose the british government's building of forts on the frontier. d. many colonists began to fear the british government's harsh actions toward the colonies.

Which major change took place in nigeria in 1999?

What is the approximate distance between paris and moscow?