The Robert Alexander Watson was set as the air minster of the radar of the great Britain and during the time of the world was 2. The Hitler strategic technique that meant to clear skies over the channel and the drill to an invasion of the British Isles might have won if not for radar as the RAF was outnumbered by the Luftwaffe, and alerted the Fighter Command from maintaining constant air surveillance.
The scenario that is described with the teacher setting up all the rules and having full control in the classroom without any input from the students is a scenario comparable to how communism works. Communism, basically, does the same, just that the teacher is the government and the students are the people. The government controls and owns everything.
In a communist society no one is allowed to express their opinions without permission from the government, and also, whoever stands up against is severely punished. Something that can be said about the example above is that if we look at it in practice, it turns out that the vast majority of teachers in the world use communist methods in the classroom, and this happens in countries of all political systems.
The tectonic plates are always slowly moving, but they get stuck at their edges due to friction. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel.
I would sort them into the categories of metamorphicrock,sedimentaryrock,andigneousrock.
Igneousrocksare made from the cooling and solidifying of lava or magma. Pumice is one of these rocks, it's made from lava being thrown out of volcano, and rapidly cooling. Obsidian and granite the other igneous rocks in the list.
Sedimentaryrocksare made from the sedimentation of smaller particles. Coquina limestone is one of these - it's made from the sedimentation of the shells of dead animals.
Metamorphicrocksare rocks which are created by extreme heat and pressure. Essentially, they used to be a different kind of rock, and now they're metamorphic rocks. Gneiss and soapstone are both metamorphic rocks.