1 = strongly agree 2 = undecided 3 = strongly disagree a. Plastic goods are essential in our modern world:
b. Plastics do not harm the environment if we recycle them:
c. We need to invent more biodegradable plastics:
d. Plastic products are better than products made of glass, metal or paper because plastic costs less:
e. Chemicals fertilizers and pesticides endanger young children and animals:
f. Chemicals do not harm the soil, even if they are harmful to pests:

What is it called when lava when it erupts from the surface through volcanoes.

Energy stored in the bonds that hold together the atoms and molecules of all substances is called a. kinetic energy. b. electrical energy. c. mechanical energy. d. chemical energy.

The hershey and chase experiments involved the preparation of two different types of radioactively labeled phage. which of the following best explains why two preparations were required? a. the bacteriophage used in the experiments was a t2 phage. b. it was necessary that each of the two phage components, dna and protein, be identifiable upon recovery at the end of the experiment. c. each scientist had his own method for labeling phage, so each conducted the same experiment using a different isotope. d. establishing the identity of the genetic material required observation of two phage generations.