FOOTPRINTS IN THE GRAND CANYON One of the questions the student of earth science often faces is regarding the nature of the agents which deposit the sediments found on the surface of the earth.
(the questions; faces; T:often) (FOOTPRINTS IN THE GRAND CANYON One of the questions; is regarding; the nature of the agents) (the agents; deposit; the sediments found on the surface of the earth) (the sediments; found; L:on the surface of the earth)
the questions FOOTPRINTS IN THE GRAND CANYON One of the questions the agents the sediments
faces is regarding deposit found
T:often
the nature of the agents
the sediments found on the surface of the earth
L:on the surface of the earth