Which of the following are made possible by energy transfer from the Sun? Choose all that apply. A. biofuels
B. nuclear power using uranium
C. wind power
D. hydroelectric power using a dam

This is Really Science but I couldn’t find it but please help ASAP!

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.