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Erosion of the Earth's surface
EduBook Organización
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External geological forces The main external geological forces are water, ice and wind. These forces normally take material from high areas on the Earth's surface, like mountains, and transport them…
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Weathering and Erosion
Tiching explorer Organización
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Part 2 Planet of Man -- The Uneventful Day Lesson 18 - Part 2 of 7 •Clues on weathering and erosion of mountains •Result of erosion •Water --freezing and thawing •Transport •Appalachians once…
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Video: Nuclear Power
Esl video Organización
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This 1 minute video explains how water is heated to generate steam and then electricity in a nuclear power station. It focuses on the 3 water loops and doesn't go into details about nuclear fission.…
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Unit 6: The Hydrosphere
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Absorption (n): the process of taking in water or another substance. aquifer (n): a natural deposit of fresh groundwater found within porous rock. colourless (adj): having no colour. continental waters…
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Self-evaluation 10 - Society and the environment
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Re-write these sentences about the exploitation of resources by correcting the errors: Non-renewable resources will run out very soon. Unexploited non-renewable resources, such as water, are referred to…
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Upthrust and buoyancy in liquids
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7.1. Archimedes' principle If we try to submerge a ball in a container of water, the water exerts a vertical upward force known as upthrust. According to Archimedes' principle: A body totally or…
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Photosynthesis and respiration
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4.1. Photosynthesis Photosynthesis is the process by which solar energy, absorbed by chlorophyll, is used to convert carbon dioxide and water into glucose and oxygen. water + carbon dioxide + solar…
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Match. Basic concepts of agricultural landscapes
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Match each definition with the correct concept: Farming system in which the fields receive water from rainfall. Farming system in which the fields receive water from groundwater or canals and rivers.…
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Complete. Surface tension
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Complete the text with the missing words: object – greatest – membrane – less – mercury – resistance – solid The surface tension of a liquid is the of its surface to an placed upon it. The…
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Work it out. Animal reproduction
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A scientist proposes to measure the effect of temperature on the growth of tadpoles. To do this, he prepares two tanks of water. Tank A contains water at 20 °C, and tank B, at 24 °C. He quickly…
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