An air mass in a valley travels up a mountainside. what causes the movement of this air?

Cassandra made a venn diagram to compare and contrast the two stages of cellular respiration. which belongs in the area marked x? energy is released. oxygen is used up. glucose is broken down. carbon dioxide is used up.

Most of the carbon on earth is stored in the form of

Brian made this table to organize his notes on changes of state change of state energy change melting gain freezing lose deposition gain condensation lose