Using the graph below, at what depth does the thermocline begin?

a line graph relating ocean depth to water temperature. at 0 meters, temperature is approximately 27°c. at 50 meters, temperature is approximately 24°c. at 100 meters, temperature is approximately 11°c. at 150 meters, temperature is approximately 8°c.

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0 meters
50 meters
100 meters
150 meters

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible? a. attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly. b. collisions between gas particles are elastic; there is no net gain or loss of kinetic energy. c. gases consist of a large number of small particles, with a lot of space between the particles. d. gas particles are in constant, random motion, and higher kinetic energy means faster movement.

Which position represents spring in the southern hemisphere? a) b) c) d)

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.