Answer:
a. geological processes occurring today have always occurred in the past
Explanation:
The theory of uniformitarianism is a theory that suggests that the changes in the crust of the Earth have been the result of geological activities that have been continuous and uniform processes. This theory doesn't really have big following in the present, though it has been much more popular in the past. The reason for that is that there have been numerous evidence that the changes in Earth's crust have not been created constantly by the same processes throughout the whole geological past. The supporters of this theory still stay strong on their beliefs though despite the evidence, and they offer other ''evidence'' that support their opinion.
Answer:
In its most general sense, the term "world" refers to the totality of entities, to the whole of reality or to everything that is. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique while others talk of a "plurality of worlds".
Answer:
This is the best explanation for why there is such a small amount of phosphorus that moves into aquatic systems:
1. Phosphorus is highly stable in the atmosphere and remains there for long periods of time.
Explanation:
The phosphorus first cycle is the process by which the phosphate ion passes in very small amounts through the lithosphere from volcanic aeorosols, then to the hydrosphere, where it stays from 20,000 to 100,000 years in the ocean, and finally to biospherere, where rain and erosion helps washing the phosphorus from the rocks into the soil. So, raining is the beginning of the phosphorus´s second cycle, so it is also, the slowest one of the matter cycles that is why the natural total background phosphate levels in several bodies of freshwater range from 0.005 to 0.05 mg/L. Phosphorus remains mostly on land and in rock and soil minerals.
Although abundant on our planet´s sedimentary rock crust and in human body, phosphorus to commercialize is only found in minerals therefore, phosphates mining activity and calcium heating is the only way to get it in its pure elemental form. It is an essential nutrient for plants and animals and a big percentage of the mined phosphorus is used to make fertilizers.
Igneous rock and metamorphic rock.
it’s located in the united state’s
