Which describes how scientists learn more about Earth's mantle?
F by studying earthquakes
(
by studying rock that has risen due
to convection
H by taking pictures from outside
the Earth
1
by using radioactive dating

If you were a casual recreational hiker with young children, which of the following trails would be least strenuous for a leisurely family outing? a. merced lake trail b. mirror lake loop trail. c. tenaya lake and tuolumne meadows trail d. el capitan trail