What is obsidian hydration dating

Abandoned Wells: a hazard because wells left on vacated lands can channel water contaminated by pesticides and fertilizer straight down into the water table. Abrasion: the wearing away of rock surfaces by small particles moved by air or water.

Abrasiveness also seems to be the one quality currently shared by most political appointees and prominent heads of state. Acid: a substance with a p H less than 7 due to prevalent hydrogen ions. The human stomach contains hydrochloric acid with a p H of 1; battery acid is stronger, but not by much. Acid Rain: precipitation heavy with nitric and sulfuric acid.

Some key assumptions: Angiosperms: flowering plants that place their seeds in fruits.

The monocots have an embryo with a single cotyledon (seed leaf), three-part flowers, parallel leaf veins, and adventitious root growth.

Dicots have two cotyledons, four- or five-part flowers, and net leaf vein patterns.

Monocots include grasses, orchids, palms, and cattails, and dicots include oaks, sycamores, and maples.

Greeks and Romans once thought a "genius loci" or spirit of place inhabited every hill, grove, and stream. The modern counterpart is panpsychism, the idea that all things possess qualities of mindfulness or psyche.

With the coming of heavy industry, such ideas gave way to the financially convenient reduction of the Earth to the status of a lifeless resource.

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Animism: a derogatory anthropological term for what most human cultures have believed throughout prehistory: that the Earth is alive and reactive, as are its many places.

It would be interesting to see a study on how many researchers feel separated from Ammonia: a gaseous compound of nitrogen and hydrogen (NH3) formed as a byproduct when bacteria decompose substances high in nitrogen.

Compost piles thick with manure often emit ammonia when hot.

Adaptation: how living things change what they do or what they are to survive in a particular environment.

In this the organism is not a passive recipient of external circumstances; the relationship is interactive. Aggradation: a downward accumulation of stream-carried inorganic matter.

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