The angle at which sunlight hits any one place on Earth changes over the course of a year. During summer,
sunlight hits a certain place as shown in the diagram on
the left. During winter, sunlight hits the same place as
shown on the right
Rays of sunlight
Rays of sunlight
Smaller area
Larger area
Summer
Winter
Which statement is most likely true about the place modeled in the diagrams?
A. The place has a climate with seasons that differ greatly in
temperature.

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.

Acetylene gas c2h2 undergoes combustion to produce carbon dioxide and water vapor how many grams of water are produced by the same amount of c2h2?

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.