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Download PDF by Michael Anderson: Investigating Earth’s Oceans (Introduction to Earth Science)

By Michael Anderson

ISBN-10: 1615305467

ISBN-13: 9781615305469

Inside the immensity and depths of the Earths oceans, a few of the planets species and assets thrive distant from the reaches of human civilization. With expanses that experience but to be came across and large reservoirs of untapped capability, oceans supply fodder for all manners of study. This informative quantity describes the good points and houses of the our bodies of water that make up 70 percentage of the worlds floor in addition to many of the branches of oceanography devoted to learning all facets of the sea and its existence varieties.

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Similar communities of organisms have been found around “cold seeps,” places where fluid rich in dissolved methane and other minerals seeps up through the ocean floor. The microorganisms at the base of a seep community obtain energy from methane or sulfur compounds and form a mat along the seep. Common seep animals include tube worms, clams, and mussels. 58 CHAPTER 4 Geological Oceanography G eological oceanography is one of the broadest fields in the Earth sciences. Researchers in this branch of oceanography are involved in the study of the topography, structure, and geological processes of the ocean floor.

More than a dozen families of marine fishes are represented. Most deep-sea animals are small. Certain types of invertebrates that live at great depths, however, such as giant squid, shrimp, and sea urchins, grow more than 10 times larger than relatives who live near the surface. Prey is scarce, and deep-sea fishes typically have huge mouths, expanding jaws, and large fangs to help them eat whatever animals they find. Many deep-sea animals have large eyes, presumably to take advantage of the little light that exists.

Just as it does in plants, chlorophyll absorbs sunlight to help diatoms make sugars from carbon dioxide and water. Unlike diatoms, most plants next change these sugars Magnification of a diatom reveals its beautiful symmetry. Eric Grave/Photo Researchers 50 Biological Oceanography to cellulose to make their cell walls strong. Diatoms, on the other hand, take up dissolved silica from the water and form it into a pair of glassy shells adorned with intricate patterns. There are thousands of species of diatoms, each with its own shape.

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Investigating Earth’s Oceans (Introduction to Earth Science) by Michael Anderson

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