a bristlecone pine in the white house usually adds a new ring when which of the following occurs?

a. earths daily rotation is complete
b. the full moon causes a monthly high tide
c. the new moon is visible from earths surface
d. earths northern hemisphere is titled toward the sun

4 answers

a bristlecone pine in the white house

A WHAT? WHERE?

oops i meant white mountains

thanks

You're welcome.