Does lightning come from the ground? i have heard that lightning comes from the ground up. but when it strikes something on land, it's the top of that object that gets destroyed.

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Which is the best predictor of the radioactive nature of an isotope? o the proton-to-electron ratio the neutron-to-proton ratio o the neutron-to-electron ratio the electron-to-proton ratio

Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia