Tutor profile: Shanaya A.
Subject: Environmental Science
What is the difference between renewable and nonrenewable resources?
Renewable resources are resources that can be used without any signs of running out of the resource in the foreseeable future, whereas nonrenewable resources must be used conserving since there is a finite amount of them and they will run out if not used in a mindful way. Examples of renewable (energy) resources include wind, solar, biomass, geothermal, and water (hydropower and tidal). Examples of nonrenewable (energy) resources include oil, natural gas, and coal. Fun fact: nuclear power is not considered renewable or nonrenewable! Nuclear energy is usually a toss-up when being considered renewable or nonrenewable. The uranium needed to facilitate nuclear energy generation is indeed only available in finite amounts, however, the process of creating nuclear energy is very clean and efficient, unlike other nonrenewable energy sources.
Subject: Earth Science
How does the concept of plate tectonics work?
Earth's crust is a relatively thin, rigid layer that is floating on top of a liquid mantle layer. Plate tectonics is the way that Earth's crust is broken up and moves. These plates move very slowly (a few inches a year). Think back to the time of Pangea, which was one major landmass in the of all of the continents we now know today. This landform began to break apart about 175 million years ago, and this occurred due to plate tectonics. As plates move around on top of the mantle layer, they interact with each other in 3 main ways: colliding together, moving apart, or sliding against each other. We call the places where these interactions take place convergent boundaries, divergent boundaries, and transform boundaries. The two different types of plates are the denser oceanic plates and the less-dense continental land plates. At convergent boundaries of two continental plates, we usually find mountains. If a continental and oceanic plate, or two oceanic plates meet at a convergent boundary, since the oceanic plate is denser, it will submerge underneath the continental plate, ultimately being heated up and converted into the mantle layer. At divergent boundaries of oceanic plates, space is created between plates and mantle rises and cools to create new land! At divergent boundaries on land, a crack can be made and in extreme cases, rift valleys can be created. The East Africa Rift Valley is an example of this. Transform plate boundaries are a large source of earthquakes. The San Andreas Fault in California is an example of a transform plate boundary.
How do I structure a well-thought essay with a solid thesis and supporting paragraphs?
Depending on the prompt and content of the paper, a powerful essay can be created on a few basic guidelines. Your thesis should be clear and concise. It should state the main idea of your paper, as well as lead into the topics of your supporting paragraphs. For example, "Breakfast is the most important meal of the day; it should include a lean protein, fruit, and healthy fats". In this example, my 3 supporting paragraphs will deal with the topics of lean protein, fruit, and healthy fats as important factors in a healthy breakfast. Your supporting paragraphs should always start with a topic sentence to set the tone for the paragraph. Each paragraph should contain at least 5 sentences. When writing an introduction, you should picture an upside-down triangle; you should start with a broad statement and end with your specific thesis statement. When writing a conclusion, picture a regular triangle; start by rephrasing your thesis, then end with a broad concluding statement. Always remember to proofread before turning in your essay!
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