To produce power for industrial expansion, the government built steel mills oil refineries commercial farms hydroelectric dams

Hydroelectric dams is the correct answer.

Explanation:

The conversion of flowing power into water and electricity is known as hydro power. It is a renewable source. Earlier the hydro power plants were used for milling. Today the hydro power plants are used to generate electricity. In turbines the mechanical energy is converted to electrical energy by using an electromagnetic generator. The Columbia river basin is the largest concentration of hydroelectric generation in US and it fulfills forty four percent of electricity needs. The US government constructed many dams to meet the energy needs of its industries.

so the story tells of someone named kaushik choudhuri, but he does not narrate the story, a girl named hema does. hema tells the story in a second person point of view because you (the reader) are supposed to be the boy named kaushik.

here's an excerpt i found: "i was ushered into the fitting room, your mother watching approvingly as i took off my coat and sweater and tried on the bra."

source:

adopted the practice of proskynesis, a persian court custom that involved bowing down and kissing the hand of others, depending on their rank.