(i) Distinguish between renewable and non-renewable sources of energy giving one example of each. (ii) Why is the use of wood as a fuel not advised although forests can be replenished? OR (i) Write the value of solar constant of Sun. (ii) What type of mirror is used in Box Type Solar Cooker? (iii) Why it is difficult to use hydrogen as a source of energy? (iv) What is the maximum temperature attained in a concave reflector type solar cooker? (v) Fossil fuels are classified as non-renewable source of energy. Explain why.