Which of the following best describes the solar radiation absorbed by a
a. most incoming solar energy is absorbed by the atmosphere.
b. only a small fraction of energy radiating from earth is from the atm
c. the earth's surface is responsible for a small fraction of heat radiat
d earth's surface absorbs little of the energy that strikes as solar radi.
select the best answer from the choices provided
o
a

Light waves travel than sound waves.

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?