Why do leaves change color in the fall?

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.

What if it is did darwin used to support his theory of evolution