Q.151895: The water is cleaned and pumped from the motor pump to the high tanks, from here it is sent to the houses by pipes, tell what is the main reason for making the water tanks high. |
पर्यावरण अध्ययन in english, जल question answers in english pdf questions in english, Know About पर्यावरण अध्ययन online test पर्यावरण अध्ययन MCQS Online Coaching in english quiz book