If a layer of sandstone lies on top of a layer of limestone in which a 300-million-year-old fossil is found, and there are no unconformities, the layer of sandstone must be a. older than 300 million years c. about 300 million years old b. younger than 300 million years d. older than 600 million years

Why are fossils of organism's from the phanerozoic eon much more likely to be found than fossils of organisms from any other eon? a. more organisms present during the phanerozoic eon had soft body parts. b. organisms present during the phanerozoic eon were all microscopic. c. more organisms present during the phanerozoic eon had hard body parts. d. organisms present during the phanerozoic eon are the most ancient life forms.

Combine like terms. do not forget to use the distributive property to simplify the first term. 2(3y + 5k) - 2k

Describe how ocean currents can affect a moving object ❕❕❕