Answer:
hey mate here is ur answer
Sand sheets and dunes cover approximately 25 percent of the Sahara's surface.
It is absolutely true that China is seeking to lessen its dependence on coal by developing more hydro power resources. The correct option among all the options given in the question is the first option. China is blessed with natural rivers and it is slowly trying to reduce its dependence on coal powered plants to hydro power plants. This is also a great step towards reducing air pollution.
The statement that your dog may live in "un immeuble residentiel" if you lived in a French city is false.