According to the model, at which time in the northern hemisphere is Earth's north pole tilted toward the Sun?
A. Winter solstice
B. Summer solstice
C. Spring equinox
D. Fall equinox

How are casts formed by decaying organisms? organisms turn into rock over time. organisms leave carbon residue on a rock. organisms leave impressions in sediment that hardens into rock. impressions left by organisms are filled in with sediment that hardens into rock.