What is the difference between “thermic solar energy” and “electric solar energy”?

What is the difference between “thermic solar energy” and “electric solar energy“?

thankyou

Which statement about renewable energy sources provides an advantage to both the economy and the environment?

A. When a hydoelectric dam is built, thousands of acres of nearby land are flooded.
B. The production of solar energy does not pollute the air and will require the manufacture and installation of new equipment.
C. Biomass is readily available and can produce emissions similar to that of coal.
D. Landfills are ofter owned and operated by business people who sell the methane to utility companies.

What is the most used alternative energy source?

im doing a project on alternative energy sources and i need to know if solar energy is the most used

how can i convert hot water into energy?

live in a tropical. thinking about installing a method to convert solar energy into electricity indirectly, via solar water heater ==> energy.
any idea??
ps: the hot water here is only up to 90degree centigrade but almost constant.
90 degree is not enough for turbine generator right?
i tried not to add any heat on it.