The winds are generated due to

$2-$ The PV cells are made of silicon aliy silicon alloys

$(3.$ Solar cookers absorb to produce electricity. surtiont and convert it into. heat.

Con pres is formed is formed behind the blades of the wind turbine and cause the uet effect

Solar distillation is used for

Betz's limit is$..$ The $.$ Thesretical maxiumm power coeffecient

The horizontal wind turbine rotates around horizentobkis, axis

The advantage of the parabolic cooker is$..$ The fastest of three

In recirculating solar heater system, the storage tank is placed the solar heater

$10-1\mathrm{.}5$ Langley equals Calorie $\frac{?}{m^2}$