Fill in the blanks with the correct words : (a) Petroleum is referred to as ____ ____. (b) The atomic power station in Maharashtra ____. (c) The first hydel power plant in India was established in 1902 in Karnataka at ____ on the river Cauvery (Kaveri). (d) The resources available everywhere on earth are called ____. (e) ____ and ____ are two important by-products of petroleum.