The orbits of lie closer to the sun than does earth's orbit. a. mercury and mars c. mars and venus b. mercury and venus d. jupiter and mercury

I’m stuck on this question cuz i’m stupid sksksksk

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

When a population split into two subgroups what is most likely to cause the subgroups to develop different traits?