How did Earth form? The Earth is thought to have been formed about 4.6 billion years ago by collisions in the giant disc-shaped cloud of material that also formed the Sun. Gravity slowly gathered this gas and dust together into clumps that became asteroids and small early planets called planetesimals. 3. Why is the liquid iron core important to the Earth? It produces the magnetic field that protects us from solar and cosmic radiation 4. Where did the Moon come from? The debris from this collision
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We know a lot about Mars but what do we know about the moons of Mars? Mars setting behind one of its two tiny moons‚ Phobos and Deimos. They’re probably ancient asteroids petrified rocks captured by an ice-cool planet. The larger moon is Phobos‚ whose name comes from the Greek word which means “fear”. Phobos measures just 22.7 km across and has an orbit that places it closer to Mars than Deimos. Phobos orbits at
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Climate Change is Boring By Derek Muller (August 29‚ 2014) Climate change is boring. Don’t get me wrong‚ it’s incredibly important‚ it’s just that the story of climate change is not especially compelling. When I started making this article‚ I thought that everyone knew the story‚ but apparently I was wrong. Most say that the hole in the ozone layer is the one to blame on why we’re experiencing climate change. To recap‚ we’re burning fossil fuels‚ releasing carbon dioxide into the atmosphere which
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individual. A life can change from a single decision; and‚ perhaps a part of life‚ becomes accepting one’s own decisions…right and wrong. In The Dead and The Gone ‚by Susan Pfeffer‚ seventeen-year-old Alex Morales faces loss‚ remorse‚ and death when an asteroid collides with the moon and chaos erupts in urban New York City. Assuming both of his parents have died‚ he now has to care for his two younger sisters‚ Briana and Julie‚ taking on unimaginable responsibilities in this thrilling novel. The Dead
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undergoes in a certain procedure. Just like what happened in our world for biodiversity to be created. Disturbances – this can be inferred to be the world’s pioneer in changing its form and biodiversity. As said in the video‚ possibly a big big big asteroid hit the planet‚ wipe out its living thing creating nothing but complete desolation. But‚ there are also disturbances that are small but is ever necessary in the formation of an ecosystem. In my own understanding of the word disturbance‚ it is action
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The planet must “clear the neighborhood” in order to earn the right to be called a planet. What does that even mean? Pluto is still in Neptunes “neighborhood” and Jupiter has two groups of asteroids in its own. Earth hasn’t even cleared it’s neighborhood! So again‚ what’s wrong with Pluto? The IAU wanted to find a way to make the solar system simpler and so they needed a way to cut off anything that could possibly be a planet that went on past
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When we think of prehistoric bones and fossils we think of dinosaurs and creatures of huge amount of size‚ but the findings of Kennewick Man changed the very thought of prehistoric beings. So exactly who is the Kennewick Man and why is he so important? Why is he given such a name as to Kennewick Man? Why would anyone want to fight and file lawsuits on each other to for a pile of old dusty bones? Well that’s what is found here on the case of “Kennewick Man.” Scientist and Native Americans just can’t
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Space exploration and the space program in general‚ have been an important part of our past successes as a country. Today‚ as our government looks at budget reduction and cost cutting measures‚ the space program is being scrutinized more than ever. Should the space program be cut or should it be reinvented? To fully understand why the space program is so controversial‚ one must first understand where the space program began. Shortly after the end of World War II (1939-45)‚ the U.S. and the
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www.Vidyarthiplus.com UNIT-I PART-B −2 2 −3 1. Find all the eigenvalues and eigenvectors of the matrix 2 1 −6 −1 −2 0 7 −2 0 2. Find all the eigenvalues and eigenvectors of the matrix −2 6 −2 0 −2 5 3. Find all the eigenvalues and eigenvectors of the matrix 2 2 1 1 3 1 1 2 2 2 −1 2 4. Using Cayley Hamilton theorem find A when A= −1 2 −1 1 −1 2 4 1 2 −2 5. Using Cayley Hamilton theorem find A When A = −1 3 0 0 −2 1 −1 1 0 3 6. Using Cayley Hamilton theorem find A find A = 2 1 −1 1 −1 1 −1 −1 0
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Honors Biology Final Exam Guide (Gray) So this is the practice test. I tried to make a relatively even number of questions from each section. I may have skipped something involuntarily so I would study your notes and whatever else as well. There is also a quizlet called Honors Biology final on my account so you can use that as well. I believe it has every term we have covered second semester. GOOD LUCK. Just think‚ no more BE SPECIFIC’s and Why?’s!!! 1. Before the time of Charles Darwin
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