The paleontologist mentions that things have been very different for the last 25 years in collecting specimens. Which steps below do you think are different today? Select two correct answers. A. Scientists make a cast around the artifact and extract it

B. Scientists extract the artifact at the dig site

C. Scientists dig a big hole around the artifact before digging the artifact directly

D. Scientists must find surface-level artifacts that indicate something of importance to dig further

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