If legos are plastic can they be recycled?

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

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.

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass