The action force is when you are putting your weight on the chair when you are sitting down. the reaction force is the force exerted by the chair that pushes up on your body and is equal to your weight.
Volcanoes start to erupt because of the magnetic field.
The answer is C. Answers A, B and D all require physics to answer. Answer C is related to Chemistry because it involves atoms and from the sound of it the fission of them because two One Hidrogen and two oxygen are required to make H2O - Water
... Speeding up or slowing down are two of the three forms of acceleration.
... The SLOPE of the line on a distance/time graph is the object's speed.
... If the graph is curved, then its slope is changing.
That means the object's speed is changing.
That means the object is accelerating.
