Choose the correct answer from the bracket [ Fossil fuel,Hydrogen,electrical energy,methane,Butane,Petroleum,Solar panel ]
The most abundant element in sun is ...............

Choose the correct answer from the bracket [ Fossil fuel,Hydrogen,electrical energy,methane,Butane,Petroleum,Solar panel ] A solar cell convert solar energy into ..................

Choose the correct answer from the bracket [ Fossil fuel,Hydrogen,electrical energy,methane,Butane,Petroleum,Solar panel ] ................... is the main constituent of biogas.

Choose the correct answer from the bracket [ Fossil fuel,Hydrogen,electrical energy,methane,Butane,Petroleum,Solar panel ] .................. provides the power required for artificial satellite.

Choose the correct answer from the bracket. if cos^-1x=y ,then y is equal to

Choose the correct answer from the bracket. cos(tan^-1x),|x|<1 is equal to

Choose the correct answer from the bracket. The implanted stage during embryonic development??

Choose the correct answer from the bracket. Verify your answer. int_0^(n/2)sinxdx

Choose the correct answer from the bracket. The solution of the differential equation xdy+ydx=0 represents