The colorado river carved out a deep canyon in the habitat of an albert's squirrel population. this is an example of which stage of speciation

For future peeps, the correct answer is:

C. The populations become totally separated from one another.  

It may be a different letter on your quiz, but on mine it was C.

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.

if you mean hydrogen and oxygen then water is the product