Essay on Geology - Earth Sciences

Essay on Geology - Earth Sciences

Length: 524 words (1.5 double-spaced pages)

Rating: Good Essays

Open Document

Essay Preview

Geology - Earth Sciences

1.     What is the commonly accepted age of Earth?
a)     4.6 Billion years
2.     Which of the following was not a source of heat for the early Earth?
a)     hydrothermal energy
3.     What are small asteroids called?
a)     meteoroids
4.     What is the process by which a planet becomes internally zoned when heavy materials toward its center and lighter materials accumulate near its surface?
a)     Diffentiation
5.     Where is most of the North American Precambrian shield exposed at the surface?
a)     Canada
6. What mineral can be used to radio metrically date Earth’s age?
a) zircon
7. Refer to Figure 22-6. What name is given to the core of the modern-day North American continent that formed in the Proterozoic?
8. What is the name of the first super continent which formed near the end of the Proterozoic?
a) Laurentia
9) What volcanic process most likely formed Earth’s atmosphere?
a) differentiation
10) Why is ozone a necessary component of Earth’s atmosphere?
a) It fillers out most of the sun’s UV radiation

11)Why is Earth’s atmosphere rich in nitrogen (N) and carbon dioxide (CO2) today?
a) because they can not escape Earth’s gravity
12) Rearrange the following phrases to create a cycle ...

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Geology of the Galapagos Islands Essay

- INTRODUCTION In 1835 Charles Darwin, aboard the vessel HMS Beagle, first set foot on the Islands of the Galapagos Archipeligo setting off on what would become the inspiration for the most important innovation in biological sciences either before or since. That visit solidified for Darwin his notion of the evolution of life on Earth, and helped trigger his breakthrough regarding Natural Selection, ultimately culminating in his groundbreaking masterpiece On the Origin of Species by Means of Natural Selection....   [tags: Geology ]

Good Essays
2306 words (6.6 pages)

Are We on the Cusp of the Sixth Mass Extinction Event? Essay

- As titled: Are We On The Cusp Of The Sixth Mass Extinction Event. Yes, we are indeed, as we, here defined as all the lives on the Earth at the moment. Mass extinction is times when the Earth loses more than three-quarters of its species in a geologically short interval (Barnosky et al., 2011). In addition, according to the Oxford Dictionary of Geology and Earth Sciences edited by Michael Allaby (2013), mass extinction is defined as the Earth has been taken place environmental catastrophe, removes many groups from environment from record and not replaced, and ecosystems collapse....   [tags: environmental catastrophe, Geology]

Good Essays
608 words (1.7 pages)

Understanding Volcanoes and their Types Essay

- ... An increase in silica concentration results in an increase in magma resistance to flow (viscosity). Andesite magma which have high content of silica compared to basalt magma make up most of the composite volcanoes fragmental materials. This silica-and volatile-rich magma is what separate composite volcanoes from shield volcanoes. Although, andesite magma dominate fragmental debris, some magma intrudes the cones such as sills or dikes. Due to this multiple intrusions, the strength of the structural framework is obtained and therefore composite volcanoes stand higher than those composed solely of the fragment materials....   [tags: vulcanology, earth sciences]

Good Essays
1048 words (3 pages)

Impact Of Volcanoes On Earth As A Small Asteroid Essay

- To begin, Binderman explains that a supervolcano has the same impact on Earth as a small asteroid, and they have potential to effect the global climate for years after an eruption. Supervolcanoes are right here in the U.S. at Yellowstone National Park in Wyoming as well as the state of California. Supervolcanoes only erupt once every few hundred thousand years, so it is very unlikely that we will experience an eruption in our lifetime. The impact that volcanoes have on our climate and safety is detrimental to our health and well-being, so there has been much more research since the 1950s....   [tags: Volcano, Volcanology, Yellowstone Caldera]

Good Essays
722 words (2.1 pages)

Essay on The Similarities Between Africa And South America

- In response to Wegener 's theory scientists created new theories and new processes to help protect the old view of stationary continents. In response to the geological similarities between Africa and South America many scientists argued of land bridges linking the two continents. Bridges of the same geology that allowed for animals and vegetation a method for getting across. Conveniently for the critics of Wegener, these land bridge are extinct, similar to the fossils found on the continents. In his article regarding Wegener Joseph Sant comments on how some geologists argued that warm water currents in the North Hemisphere allowed for tropical climates in the polar regions (Sant)....   [tags: Plate tectonics, Geology, Seafloor spreading]

Good Essays
735 words (2.1 pages)

Essay about Geology: The Study of the Earth

- Erosion occurs when wind or water blow/wash away the topmost fertile layer of soil. As fertile land loses its fertility due to soil erosion, it is difficult to grow crops on eroded lands. Apart from affecting crops, erosion also weakens land, causing buildings to collapse. Soil erosion can be prevented by planting windbreaks. Windbreaks are lines of planted bushes and plants that hold soil firmly with their roots and prevent it from being washed away. Other methods include terracing, in which level plains are cut on hillsides and crops are grown on these plains....   [tags: Geology ]

Good Essays
1057 words (3 pages)

Major Contributors to the Theory of Evolution Essay

- ... Plato introduced the concept of eidos, the unchanging ideal forms of all the phenomena of the world, stating variations were imperfect manifestations of the ideal, divinely inspired form. Thus, Plato ruled out evolutionary thinking. Aristotle questioned Plato’s philosophy - stating gradation in the natural world from simple to complex. He proposed the concept of scala naturae (Great Chain of Being) in which species are fixed and do not evolve on the ladder of life. For two thousand years. Aristotle’s worldview was accepted by western philosophy....   [tags: philosophy, geology, natural selection]

Good Essays
868 words (2.5 pages)

Hydrovolcanic Eruptions and The FOrmation of Tuff Rings in Southern Oregon

- In this report, I will be discussing the formations of tuff rings, tuff cones, and a variety of spectacular geologic features that can be seen in the Southern Oregon area (near Silver Lake); including Hole in the ground, Fort-Rock, and Table-Rock complexes. To begin, we will start with the background of how tuff rings and tuff cones are formed. Hydrovolcanic eruptions are some of the most violent spectacles, each generating hundreds, or even thousands, of explosions throughout the course of its eruption....   [tags: pleistocene era, geology]

Good Essays
1245 words (3.6 pages)

The Egyptian Geological Museum Essay

- The Egyptian Geological Museum The Egyptian geological museum lies at Al Zahraa near AL Maadi. It was built in 1904, and it was opened for the public in the same year. The inauguration of the museum, which was hundred years ago, was a significant international event not only in the Arab region, but in the whole continent of Africa as it was the first of its kind. The museum was built as a part of the Egyptian Geological Survey which was established in 1869....   [tags: Earth Science]

Free Essays
629 words (1.8 pages)

geology Essay

- The energy released from earthquakes and forces that move crustal plates are derived from the internal heat engine. Liquid water can exist on earth because the orbit is at the proper distance from the sun. The ozone layer is important to life on earth because it shields living things from uv rays. Constant change and state of flux on earth is caused by slow moving convection currents in the mantle. The internal heat of earth is a result of heat from radioactive decay of certain elements. The main cause of over-use of minerals is expanding populations....   [tags: essays research papers]

Free Essays
1035 words (3 pages)