Use a hot-air balloon moving across the sky as an example to explain how speed, velocity, and acceleration are different.

Speed is how fast its going in the air

Velocity is how high up the balloon is

Acceleration is how much faster you are starting to go

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.