Question 9 9. The motions of comets ans asteroids in our solar system are
predictable because they are
A. smaller than planets
B. nearly spherical in shape
C. in orbit around the sun
D. controlled by Earth's gravity

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

Solar energy is energy from the sun that is converted into thermal or energy. a. nuclear b. mechanical c. electrical d. chemical

Which is the layer underground where all empty spaces are filled with a combination of air and water ?