Metamorphic rocks are produced when rocks are recrystallized by heat and pressure.
Although they began as a different kind of rock, metamorphic rocks have undergone significant alteration from their igneous, sedimentary, or previous metamorphic forms. When rocks are exposed to extreme temperatures, high pressures, hot mineral-rich fluids, or, more frequently, some combination of these conditions, metamorphic rocks are created.
High pressures and temperatures both have a role in recrystallization. Solid crystals can reorganize themselves by migrating as a result of high temperatures. The crystals within the rock at their places of contact dissolve under high pressure.
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The conflict between Russia and Chechnya began 20 years ago when Chechnya located in Russia's North Caucasus region that had announced its independence. This attempt of separation from the union has started the war killing many nationals. As of writing, Chechnya is a de facto independent state while being formally part of Russia.
Answer: all of the above
Explanation:
Conservation biogeography is a relatively new academic subject. It deals with the application of the knowledge of biogeography with that of the conservation biology.
It deals with the observation of ecological and biophysical factors that affects the distribution of biotic community. It also studies about how evolutionary mechanisms change the species and their distribution due to factors such as climate change, species interaction, plate tectonics and events or processes.
Distribution and effects of both endemic and invasive species.: The conservation biogeography deals with the distribution of endemic and invasive species in region of their association and their effect on the environment.
Impacts of rapid climate change on biodiversity.: The effect of climate can be positive for the conservation of biodiversity or it can be drastic and destroy the biodiversity of the region.
Implementation of conservation planning and establishment of protected areas
.: Certain geographical regions of the world are rich in biodiversity hence, planning should be done so as to protect these regions.
Thus all of the above is the correct option.
The earths inner core is made of iron and nickle
Answer:
Ice wedges are a big cause of potholes in roads and streets. As ice forms in the cracks of a street, the water expands and pushes against the surrounding rock, making the cracks wider, eventually breaking apart the rock.
