Plessy v Ferguson was a landmark case and was a United States Supreme Court decision to uphold the laws that kept segregation, under the phrase "separate but equal". This regarded public facilities for the most part including buses, bathrooms and water fountains. This was brought from the Committee of Citizens in New Orleans, so this was applied across the board in Louisiana.
The inuit in canada and Greenland, and the Yu'pik, Iñupiat, and Athabascan in Alaska, are just a few of the groups that are native to the Arctic.
The three main types of rocks are:
1. Igneous rock
2. Sedimentary rock
3. Metamorphic rock
They are classsified by their formation :
Igneous rock- This type of rock is formed due to volcanic activities, and under this type of rock, it is seperated into volcanic rock and plutonic rock.
Volcanic rock is also called intrusive igneous rock, where the magma filled the cracks below surface and cools down without meeting the air. One of the example if this kind of rock is granite.
Plutonic rock is also known as extrusive igneous rock where volcanic eruption occurs and the lava cools down after being exposed to the air. One of the example is tuff.
Sedimentary rock- These kind of rocks are formed due to the accumulation of sediments overtime. Rocks are also divided into two types under this catagory, namely clastic and non-clastic sedimentary rock.
Cladtic sedimentary rock - It is where the particles of sediments gets compacted due to accumulation, and the rock is usually coarse grained with different size of particles, for example, breccia.
Non-clastic on the other hand, are formed by organic substance that existed for a very long time to become rock, for example, coal is a kind of rock that is formed by organic substances under million years of accumulation. It is posible that fossil will be found.
Metamorphic rock- These type of rocks under goes extreme high temperature or compaction to form a new kind of rock from their parent rock. For instance, igneous rock will turn into marble under high temperature.
Hope it helps!
<span>The fossil of the Glossoptersis Plant occurs on the most landmasses</span>
