HELP ASAP ILL GIVE BRAINLIEST What does the principle of faunal succession state?

Fossils are deposited in approximately horizontal layers and spread out until they reach a barrier.

Absolute dating is required to determine the relative age of animals based on their fossils.

Specific groups of organisms have followed one another in a definite sequence through the Earth's history.

Rock layers with the same unique grouping of fossils are of the same geologic age.

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: