Definitely the first: the water molecule is polar. :)
Answer:
Frequency
Explanation:
Doesn't say how often he exercises
3. C: Heavily populated with trees.
4. A: Tundra has the lowest humidity
Answer:
Temperature: measure of the average kinetic energy of a substance
Internal energy: total potential and kinetic energies of the particles in a substance
Heat: thermal energy that flows from one substance to another
Thermal energy: part of internal energy that can be transferred
Explanation:
