If there is no oxygen , the cells go through anaerobic respiration which leads tot he build of lactic acid in the muscles. This is why we get sore and feel the burn during a workout.
You should always suppose to have safety goggles because you don't want to hurt your eyes
Centimeter because it is the only metric measurement
I think it is particoul and artrical lol hopefully this helps
The physical processes on Earth create constant change. These processes—including movement in the tectonic plates in the crust, wind and water erosion, and deposition—shape features on Earth's surface.