According to the business cycle, a downturn in one industry is inevitable, but should have little effect on the rest of the economy.
a. true
b. false

Which type of bacterial reproduction is depicted in the diagram?

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c. ozone layer hole d. increase in sea levels

The transport tubes for food coming down the plants are called?