What is the meaning of शब्द शुद्घ

As oil prices rose during 2006, demand for alternative fuels increased. ethanol, one alternative feul, is made from corn. according to an article in the wall street journal the price of tortillas which are made from corn also rose during 2006. the price spike in tortillas is part of the ripple effect from the ethanol boom. draw demand and supply graph for corn market and use it to show the effect on this market of an increase demand for an ethanol. be sure to indicate the equilibrium price and quantity before and after the increase in demand for ethanol.

Can someone translate the swahili word 'cheo' for me ? i do not understand.

Is not a component of hearing. a. attempting to recall b. making an effort to attend c. providing feedback d. all of the above