You CAN take antibiotics for viruses like this years virus?
True of false?

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.

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere