Which of the following environmental protection issues is a direct result of human involvement?
a. pollution
b. invasive species
c. biodiversity loss
d. all of the above

Which action would best students ask a teacher for an assignment extension?

Suppose you calculate that elasticity of demand for cigarettes is 0.5. you can conclude that: a. demand for cigarettes is elastic b. demand for cigarettes is unitary elastic c. a 1% increase in price of cigarettes will result in a 0.5% decrease in quantity demanded d. a 1% increase in the price of cigarettes will result in a 0.5% increase in quantity demanded.

What is the type of contaminant that can cause foodborne illness