Which of these rocks can be chemical or biochemical? a. Banded iron formation
b. Chert
c. Evaporites
d. Coquina

Some fossils provide evidence to suggest that earth's climate has changed over time. which information can scientists obtain from these fossils? check all that apply

Most countries in the middle east must import a majority of their a. gasoline b. oil c. food d. water

The declining axolotl population in mexico city is an example of in overcrowded cities. a. the surpassing of support capacity b. changes to natural environments and native species c. the lack of safe homes and tenured spaces d. the effects of a growing urban heat island