The "sensitivity factor" in the model used to represent human environmental impact denotes
a. the sensitivity of governments to carrying capacity demands
b. the sensitivity of endangered species to human population infringementeconomic sensitivity to resource use
c. human sensitivity to what needs to be done to protect the environment
d. the sensitivity of an environment to human pressures

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes