The hotness or coolness of the atmosphere is determined by how fast air molecules are moving. If the temperature is warmer, molecules move faster and have more energy. If the temperature is cooler, molecules move slower and have less energy. Temperature is a measure of the average energy of individual particles in a system. The system may be air molecules in the atmosphere, water molecules in the

Question

ocean, or iron atoms in molten metal. We measure temperature using a thermometer.

a. comparison-contrast
b. explanation and enumeration c. cause-effect and definition

Answer 1

c