As it rains and snows near mountaintops, the water is transferred from the atmosphere back onto ground. What natural force pulls the water down the mountain, eventually forming rivers or lakes?

What is the momentum of a 2 kg object moving at 15 meters per second

Asystem containing an ideal gas at a constant pressure of 1.22×10^5 pa gains 2140 j of heat. during the process, the internal energy of the system increases by 2320 j. what is the change in volume of the gas?

Explain what will happen if decomposers were apsent from a forest ecoysystem.