What does it mean if a rock has a fine texture?

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.

Carbon 14 is a naturally occurring stable