The number of spark plugs needed in a diesel engine is__________
Where do most of Asteroids lie
Television signals are converted into light signals by___________
Which of the following explains the reason why there is no total eclipse of the sun
Which of the following layers make radio transmission possible
Diamond is a very expensive ornament It is composed of a single element ___________
The position of earth in its orbit, when it is at its greatest distance from the sun causing northern summer is called ___________
Eugenics is the study of___________________
The most splendid and the most magnificent constellation on the sky is
Orbital period of the planet Mercury around the sun is _____________
