Q: All the major landmasses moved together to form one supercontinent in which period? Choices: - Mesozoic - cambrian - Cenozoic - permian A:
permian

Q: Vibrating objects such as drumheads produce what? Choices: - negative ions - light - heat - sound energy A:
sound energy

Q: The modern model of the atom, which scientists call the quantum mechanical model, is based on what scientist's work on orbitals? Choices: - Sagan - Bohr - Newton - schrodinger A:
schrodinger

Q: Corals build hard exoskeletons that grow to become what? Choices: - algae - stability reefs - fungi - coral reefs A:
coral reefs