Answer:
Clean trash, stop littering, clean the oceans
Six:
1. Upper Mississippi
2. Arkanas River
3. Illinois River
4. Missouri River
5. Ohio River.
6. Red River
Answer: Due to plate movement
Explanation: This limestone was near the ocean floor the collisions of tectonic plates cause this limestone to move up, because of the combination of streaching and lifting and futhermore was not exposed to pressures or heat to metamorphose.
Fossils (from the Latin fossilis, which means 'excavated') are the remains or signs of the activity of past organisms.These remains, preserved in sedimentary rocks, may have undergone changes in their composition (by diagenesis) or deformations (by dynamic metamorphism) more or less intense.