Describe ways that researchers can test chemicals for their toxicity.

The ways that researchers can test chemicals for their toxicity.

Explanation:

Presently chemical testing is costly and time-consuming. Only a little portion of chemicals have been fully evaluated for potential unfavorable environmental and human health effects.  Nowadays researchers are utilizing rapid and effective methods to assess chemicals for potential toxicity and produce new techniques to determine chemical exposure. These techniques are applied to assess thousands of chemicals found in consumer products, the oxygen we inhale and the liquid we absorb.

"Rapid and Automated Toxicology"

"Rapid, Automated Exposure and Dose"

a small object of mass 3.66 g and charge -17.6 µc is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. what are the magnitude and direction of the electric field?

the second one and the forth one are in the purple because they are opinions and the rest are in the yellow

explanation: