Which of the following inventions kickstarted the industrial revolution, and in turn, allowed for the beginnings of industrial agriculture? A. the light bulb
B. the plow
C. the steam engine
D. the tractor

What is the maximum number of electrons that an atomic orbital can contain?

Which characteristics can be used to differentiate star systems? check all that apply.

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.