Q: Q: Because of the wave character of matter, the idea of well-defined orbits gives way to a model in which there is a cloud of what? Choices: - particles - mutation - chaos - probability A:
A: probability

Q: Q: Covalent solids are formed by networks or chains of atoms or molecules held together by what? Choices: - ionic bonds - bail bonds - gravitational bonds - covalent bonds A:
A: covalent bonds

Q: Q: What do most organisms eat in the profundal zone of a lake? Choices: - fresh organisms - algae organism - fish waste - dead organisms A:
A: dead organisms

Q: Q: What do electric motors use to change electrical energy into kinetic? Choices: - resonances - generators - fans - electromagnets A:
A: electromagnets