Nova: Hunting the elements Three-quarters of the elements are metal

How an atom reacts chemically depends on how willing it is to share
with others.

Explain why the plants cortex would serve as the best food source for animals

Which group of molecules are targeted by the kinases in order to control this movement

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