The Richter scale measures strength while the Mercalli intensity scale measures the effects of an earthquake. Another difference between the Richter scale and the Mercalli intensity scale is - the Richter scale provides a single measurement while the Mercalli intensity scale can produce multiple measurements depending on the area affected.
The Richter Scale is an absolute scale and the Mercalli scales measures how people feel and react to the shaking of an earthquake.
nothing else exept water and animals that can be used for food or entertainment like the zoo
It might not be a good idea as nitrogen may be needed by plants in several cellular processes and eliminating nitrogen uptake might severely impair these functions if there are no alternatives to these pathways
Yes, sure!
1) Moving Water - Water, when running for a long period of time, can actually start to weather rocks.
2) <span>Ice wedging - Yep, this can cause rocks to weather as well. Water, when being constantly frozen and unfrozen weathers the rock due to the fact that water is able to expand.
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3) Plant Roots - Ah, these little nutrient grabbers can certainly weather rocks over periods of time.
4) Winds - Winds can certainly physically weather the rocks, and it's probably the most common way they do.
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