Tools used to measure latitude (Lesson 02.01) (use the first resource in this lesson to help you) Be able to list and describe the 3 main tools used to measure latitude in early navigation Sextant- allowed users to determine their latitude to within a sea mile or two The gnomon or sun-shadow disk- operated like a sundial‚ enabling the user to determine his latitude by the length of the sun’s shadow cast on a disk floating level in water. The Arabian kamal- a rectangular plate that one moved
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The most common effects of dumping plastics into the ocean are entanglement and ingestion. There are six main types of ocean pollution happening: oil‚ sewage‚ air pollution‚ agricultural runoff‚ sunscreen (lesser known)‚ and the most common type being dumping. Ocean dumping consists of dumping garbage‚ sewage‚ waste chemicals‚ and construction debris into the ocean. Entanglement is a large factor in the deaths of marine animals and is also the most common. Entanglement “kills through drowning‚ strangulation
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An invasive species such as the zebra mussel‚ invaded the Great Lakes of America in 1988. They were brought in by seagoing vessels that emptied their ballast water as they got in the port‚ the zebra mussels had hitched a ride in the water taken in in the ballast before the ship left port in the Caspian and Black seas. By 2010 these muscles and colonized the waters in over 30 US states spreading like wildfire. Invasive species have a huge impact on their nonnative environment‚ the zebra mussel clogs
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deep ocean The oceans cover 75% of the world’s surface and contain 97% of its water; 90% of the seas lie beyond the shallow continental margins‚ and most are deeper than 2km. With the advent of modern science we have been able to discover what some of the deep ocean is like but there is still a vast area that remains unexplored. One thing we do know is that life at these depths is dominated by animals‚ not plants
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Jessica Austin AP English 3 Salyers 2 2.20.13 Aquatic Humanoids For generations‚ the human race has been fascinated with aquatic humanoids‚ a more common term being mermaids. Our ancestors have written literature‚ drawn pictures and sculpted statues of half-human‚ half-fish women. Personally‚ I believe these sea creatures could be non-fiction due to the fact that the world has explored less than five percent of our oceans; one cannot simply determine a specimen does not exist without proof and
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| |2013 | | | | | | | Louisiana Wet Land Loss [pic] The coastal land loss for Louisiana has become a growing concern for the people of Southeast Louisiana over the last decade. “Coastal Louisiana wetlands make up the seventh largest delta on Earth‚ contain about 37 percent of the herbaceous marshes in the United States‚ and
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Life underwater is without a doubt the most beautiful sceneries on Earth; however‚ can easily be taken away from the carelessness of human activities. Due to the massive production of waste and the excessive need for daily materials‚ oceans are becoming more and more polluted; in addition‚ result to damaging effects on marine life. The ocean appears to be a large trash can for disposing waste in the convenience for humans. According to UNESCO‚ statistics show that in 2006‚ 46‚000 plastic materials
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Pacific Green Turtle In my paper I will write about characteristics of the Pacific Green Turtle‚ along with where they are located‚ lifecycle‚ what they eat and predators of the species. The Pacific Green Turtle gets the name from their “Subdermal”. Have flippers that provide them with the ability to move quickly under the ocean water. Shell of the turtle is called the “Carapace”‚ which happens to be the largest part of the animal. The shell isn’t always green‚ infact it can be a variety blend of
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Whales are aquatic (lives in the ocean) mammals that require certain adaptations in order to survive. They have a blow whole on top of their heads and a pair of lungs for breathing fresh air. In order to take a fresh breath whales need to emerge out of the water exposing the blow whole on top of their heads completely. As they emerge to the surface‚ they force out the carbon dioxide in a strong exhalation‚ before filling their lungs with fresh water and diving beneath the surface of the water again
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Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the moon and the sun and the rotation of the Earth. This paper will explain the way tides work‚ the different types of tides‚ and the causes of tides. Tides work in systematical ways! They start by the wind pushing the water so that it rolls over itself. once the waves get big enough force‚ it causes the waves to become very‚very large in height and also length. During the day
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