The answer is C. If u want to know how just ask.
Photovoltaic cell is the correct answer ,it converts sunlight into electricity.Hope this helped!
Out of the options given above, the statement that is true is this: YOU ARE EXPOSED TO NUCLEAR RADIATION EVERYDAY.
Man is naturally surrounded by many natural and artificial radioactive sources which give out radiations on a daily basis. Although most people believe that the natural radiation are at levels that are not dangerous, scientific studies had found out that this is not true; some of the radiations are given out at the rate that are harmful to humans.<span />
The solution of dextrose has a w/v% of 70 %. this means the mass of dextrose is 70 % of the volume of the solution.
In 100 mL of the solution - mass of dextrose is 70 g
therefore in 400 mL of the solution - mass of dextrose is - 70 /100 x 400 = 280 g
mass of dextrose is 280 g