Currently there are ______ rooftop solar water heaters in China.
Currently there are ______ rooftop solar water heaters in China.
Electric heaters have the electric energy _____________ (transform) into heart.
Electric heaters have the electric energy _____________ (transform) into heart.
The rooftop solar water heaters provide ______ without consuming any fuel.
The rooftop solar water heaters provide ______ without consuming any fuel.
Solar water heaters priced much ______ in America than a comparable system in China.
Solar water heaters priced much ______ in America than a comparable system in China.
Solar water heaters help to lower energy cost and cut carbon emissions.
Solar water heaters help to lower energy cost and cut carbon emissions.
Solar water heaters would be immesely ______ since it would help dramatically lower our energy costs.
Solar water heaters would be immesely ______ since it would help dramatically lower our energy costs.
Why is it so rare to see rooftop solar water heaters in America while such devices are commonplace in China?
Why is it so rare to see rooftop solar water heaters in America while such devices are commonplace in China?
Currently there are 1 rooftop solar water heaters in China. Nearly 2 Chinese companies are manufacturing these devices.
Currently there are 1 rooftop solar water heaters in China. Nearly 2 Chinese companies are manufacturing these devices.
Why does the author say solar water heaters would become immensely popular if their prices dropped down?
Why does the author say solar water heaters would become immensely popular if their prices dropped down?
How many rooftop solar water heaters are there in China currently? How many Chinese companies are manufacturing devices
How many rooftop solar water heaters are there in China currently? How many Chinese companies are manufacturing devices