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The states of water
EduBook Organización
- 6817 visitas
The three states of water Water has three states: liquid, solid and gas. Rain and rivers are water in a liquid state. Ice and snow are water in a solid state. Water vapour is water in a gaseous state.…
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Final self-evaluation 11.01 - The Earth's Population
EduBook Organización
- 6762 visitas
Are the following statements true or false?: Population growth depends on the birth rate and the mortality rate being equal. The global population grew slowly until the middle of the 17th century and…
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Internal forces in the formation of relief
EduBook Organización
- 6781 visitas
2.1. Internal forces Below the surface of the Earth, gases and compressed materials put pressure on the crust. They can deform it or make it crack. These internal forces are what cause earthquakes and…
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Water changes state
EduBook Organización
- 6508 visitas
The three states of water Water has three states: liquid, solid and gas. Rain and rivers are water in a liquid state. Ice and snow are water in a solid state. Water vapour is water in a gaseous state.…
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The Earth's surface: shaping human activity
EduBook Organización
- 1 lo usan
- 6030 visitas
In order to study human and economic geography it is important to understand the physical world that surrounds us. The geographical features of the continents and the oceans that surround them,…
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End-of-unit evaluation - The legacy of classical culture
EduBook Organización
- 6236 visitas
The culture of the ancient Greeks and Romans is the basis of our western culture. The Greeks were interested in knowledge, art and the organisation of society. Greece was the birthplace of western…
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Science and technology
EduBook Organización
- 5715 visitas
Progress in science and technology has improved our quality of life. New technologies have also led to the creation of computers and the Internet. Computers have become an essential part of most…
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The representation of the Earth: maps
EduBook Organización
- 5726 visitas
2.1. Maps Maps are flat representations of the Earth's surface. To read and interpret a map we need to know its basic elements: scale and conventional signs. Scale Scale indicates how many times the…
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