111.   When experts have enough material to work with, chemicals are used to wash, color and fix the DNA, enabling it to be typed.

112.   When he stopped using chemicals on his land, his first yields were sharply reduced.

113.   What brain chemicals are used?

114.   Why I had to use chemicals to make me feel good.

115.   With IPM, chemicals are used only when action is necessary to keep pest numbers below a level of economic or aesthetic damage.

116.   You could use chemicals in the body to operate the motor and control which way the sub turns.

117.   Painters of icons appeared on television to dispute suggestions that certain chemicals can be used to make icons weep.

118.   Police searched the temple after the attacks in Japan, but did not find any chemicals used in nerve gas.

119.   And everyone criticizes the Indians for apparently having used corrosive chemicals.

120.   Authorities used chemicals to clean up the oil which mixed with sand on nearby tourist beaches, used normally by thousands of vacationers each day.