To find the quotient Two-fifths divided by one-fourth, multiply 2/5 by 4.
multiply 2/5 by One-fourth.
multiply 5/2 by 1/4
multiply 5/2 by 4.

List the advantages and disadavantages of the switch from persistent chlorinated hydrocarbon pesticides (such as ddt) to nonpersistent organophosphate pesicides. have the benefits of the switch outweighed the disadvantages? explain.

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.

Variety of living organisms; includes genetic, species, and ecological types.