Alicia gives her brother a push while he is seated on a swing. She finds that after a few seconds, she needs to push again to keep him going. The reason her brother slows down is because the mechanical energy is converted into
A: thermal energy that is released into the atmosphere.

Plate movement can form different features on Earth. The movement of tectonic plates can be both a constructive and a destructive force. At which type of plate boundary is new crust formed?
A: divergent

Which of the following remains constant in Earth's carbon cycle?
A: the total mass of available carbon

A large quantity of heavy rain falling in a short time period will most likely
A:
reduce the amount of nutrients in the soil.