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Oxygen
There was an event commonly known as the "Great Oxygenation Event" which occurred around 2.4 billion years ago. One theory suggests that this was caused due to the production of oxygen by micro organisms. In the early Earth this oxygen normally reacted with minerals in the surface rocks during weathering (creating very thick beds of oxidised rocks such as banded iron formations). However a point was reached where no more minerals were available to react with the oxygen and so it began to accumulate in the atmosphere. Please see the related link for more information.
The blockages is called an emboli. It can be caused by a blood clot, air bubble, fatty deposit, or other object that has been carried in the bloodstream to lodge in a vessel.
Is it possibly caused by carbon or sulfur deposit from the well water? Is the piping really old?
unconformities
Oxygen
Most of the rock formations in West Virginia are caused by erosion.
Yes: some of the calcium carbonate dissolved in the water in each drop precipitates as its crystalline form, calcite, so slowly builds up layer after layer of crystals to form the stalactite (and related formations).
Yes. As wind passes over rocks, particles in the air work kinda like a very fine sand paper slowly wearing down rocks and other items. This process takes a long time, but is evident when you look at rock formations in deserts. the banded lines of thinner and thicker portions of the rocks are caused by wind wearing down the softer layers faster then the harder layers.
A feature caused by the deposit of something else, such as a sand dune.
A feature caused by the deposit of something else, such as a sand dune.
Deposits are for missed payments and damage caused. If it is stated that on a breach of agreement you would not return the deposit then yes, or if it has caused and sort of money (gas money, cleaning, return it to the way it was) then you would be entitled to that deposit up to that amount used.
If damage is caused or money is owed
your security deposit is for DAMAGES caused by the tenant. Note this is major damages (broken windows, holes in the walls), not normal wear and tear. This flood was caused by faulty plumbing, not the tenant, so the tenant's security deposit should not be effected by this. Therefore the tenant should get his security deposit back, unless there were damages caused by the tenant themselves (not by the flood).
Other factors must have caused the low dissolved oxygen levels. Bacteria and other organisms can lower the dissolved oxygen of water when they respire aerobically.
Yes, unless you caused the fire.
The security deposit should be applied to the arrearage (including any court costs), and any remainder returned to the tenant. Does the landord need to notify you how your deposit will be applied.