Question 4 Natural selection leads to the
blank of certain traits in a population and the blank
of other traits.

Which statements about wells are true? check all that apply. a) wells bring groundwater from the unsaturated zone to the surface of the water. b) wells need to be drilled below the water table. c) if water is pumped from a well too quicky, the well may run dry. d) water from wells is generally not safe to drink. e) water gushes from artesian wells due to pressure.

What way does renewable energy differ from nonrenewable energy?

In the diagram, δgef and δhef are congruent. what is the value of x?