Describe what happens to the proportion of renewable vs. non-renewable energy sources that remain available, as energy is used over time.

What is a metal replacement reaction

What is the number of neutrons in an atom with atomic mass of 35

Agust of wind blowing east pushes against a ball. when will the wind do work on the ball? when the ball moves to the east when the ball moves to the north when the ball stays in one place when the ball moves north or south