A geologic cross section is shown below. The rock layers have not been overturned. KEY:
12
Basal
LL Contact
metamorphism
(not drawn to scale)
Explain why carbon-14 could not be
used to determine the age of a
Dicellograptus (K) fossil.

Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses

In what layer of the sun is energy transfers between atoms

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?