Name the petroleum product used for surfacing of roads.

Name the two products from apiculture.

Name two poisonous products formed by burning of fossil fuels. Mention the estimated period up to which petroleum and coal reservoirs are expected to last.

Name the method used for refining of zirconium.

Name the epithelium present on the surface of oral cavity ?

a) Name the products X and Y?

Name the products of anaerobic respiration.

Name the site of production of blood cells.