111.   The guards, posted by the Northern Alliance, said the men had warned them to stay away from the house because the chemicals could be dangerous.

112.   The new chemicals are buprofezin, sold under the brand name Applaud, and pyriproxyfen, sold as Knack.

113.   The researchers found that the chemicals are long-lasting, creating an aggressive response among ants for nearly two months after being secreted.

114.   The researchers analyzed the level of pesticides found on the foods, as well as how toxic the chemicals were.

115.   The three chemicals are important ingredients of fertilizer, plastics and synthetic fibers.

116.   The Tufts test, called the E-Screen, is an important advance because it can determine whether estrogen-mimicking chemicals are present in water.

117.   The two chemicals are methyl parathion, which is used on fruits and vegetables, and azinphos methyl, also used on foods.

118.   The U.S. Environmental Protection Agency is no longer revealing what chemicals are stored at manufacturing plants.

119.   The two chemicals are crucial for poultry nutrition but can cause pollution problems when manure is applied to fields and runs off into rivers and streams when it rains.

120.   There are chemicals you can buy to pour on the stump to break it down.