Steno's Principal of Original Horizontality states that... Fossils that are more ancient are found in the bottom layers of sediment.

Sedimentary rocks are deposited in approximately horizontal layers when they are originally formed.

Sediments spread out in all directions until they either think out or un into a barrier.

Younger rocks are deposited on top of older rocks

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the money supply is the total amount of money available in the economy. how do changes in the money supply affect people and businesses?

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.