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- Eras geológicas
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- Juan Carlos Onetti
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The Earth (I)
EduBook Organización
- 2420 visitas
The planet Earth is round, like a ball. We call this shape a sphere. We use imaginary lines to study it. The Earth moves in two ways. It orbits (moves around) the Sun and it rotates on an imaginary line…
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Overfishing
Laia Docente
- 2 lo usan
- 2578 visitas
Over three quarters of our planet are covered by the oceans. Their biodiversity is unmatched and they contain over 80 percent of all life on earth, mostly unexplored. Millions of people worldwide are…
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Complete. Atmospheric conditions
EduBook Organización
- 2324 visitas
Choose the best word to complete the following sentences: is the weight of the air on the planet's surface. Atmospheric pressure depends on and . Warm air weighs less and is less dense, which makes…
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Complete. The Moon
EduBook Organización
- 2298 visitas
Complete the sentences with the missing words: artificial – atmosphere – heat up – hidden – smaller – satellite – satellites – orbits – 28 – 107 – 173 The Moon is the Earth's…
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Match. The structure of the Earth
EduBook Organización
- 2260 visitas
Indicate which of the Earth's layers match the following characteristics: It is less than 1% of the planet's total volume. It is where we find magma. It is made of solid rock, such as basalt or…
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End-of-unit evaluation - Towards a global system
EduBook Organización
- 2236 visitas
Nowadays, people, information and capital move around the world at great speed. This has led to the creation of a global, capitalist and market economy. This economy now dominates the whole planet and…
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Introduction - Towards a global system
EduBook Organización
- 2152 visitas
Nowadays, people, information and capital move around the world at great speed. This has led to the creation of a global, capitalist and market economy. This economy now dominates the whole planet and…
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Water shortages
EduBook Organización
- 2094 visitas
5.1. Water distribution on the planet Fresh water is unevenly distributed on Earth. Around 2 billion people, who live in more than 80 countries, do not have access to safe, clean drinking water. This…
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Final Autoevaluation T07 01 - Energy inside the Earth
EduBook Organización
- 2086 visitas
Answer true or false: The Earth's interior is hotter than the surface. Tectonic plates are about 100 meters thick. Most tectonic plates have continental and oceanic parts. The most active areas of…
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Complete. Calculating population size with censuses
EduBook Organización
- 2076 visitas
Complete these sentences with the missing words: The of inhabitants on the planet is known thanks a system of counting populations known as a . Population censuses happen in the majority of countries…
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