Q1. ___________ is not a petroleum product.
Q2. Solar energy is __________________ source of energy.
Q3.Colour of milestone of National Highway is __________&____________.
Q4. Full form of CNG is _________________________.
Q5. Adalaj Saha stepwell is about _____ km away from Ahmedabad.
Q6. Petroleum is cleaned and its product are separated in a ________________.
Q7. Sound of the loud horns cause __________________.
Q8.Full form of LPG is ________________________.
Q9. To save fuel we should _________________.
Q10. Petroleum is formed naturally but very ______________.