Which rock layer in figures 1 and 2 are about 500-600 million years old?

What are very long and large organic molecules called

If a river has a high gradient and a large sediment load composed of a large percentage of bed load, the direct result would be A) a meander B) a tributary C) an oxbow lake D) a braided stream

Which two of these locations are most likely to experience chemical weathering?

Is leather, wood, and water examples of insulators

What do you call the living part of the enviroment? a. abiotic user: b. ecosystem c. population

Would a person be squashed by extreme gravity, float with ease, freeze, burn up, or something else

If a water well is actively pumped, the water table will * O be raised around the well O stay at the same level as before pumping O be depressed around the well O be recharged

Proposed answer to a scientific question that A. can be rejected B. is testable C. both a & b

In which list are the levels of organization in the human digestive system shown from lowest to highest?

Splitting cells involves creating a single by combining two or more