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True / False. Tools
EduBook Organización
- 2418 visitas
Are these sentences true or false? A tool is an instrument that we use to make our work easier. We operate tools using our hands. Humans used rocks, bones and sticks to make the first tools. When humans…
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Keeping our lungs healthy
EduBook Organización
- 2420 visitas
We need to inhale clean air for our respiratory system to work properly. If there is less oxygen in the air, we have difficulties in breathing. This is why badly ventilated spaces are bad for our lungs.…
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Analyse. Rainfall in Spain in 2007
EduBook Organización
- 2412 visitas
Look at the map and answer the questions: Which meteorological station in Spain recorded the most rainfall in 2007? Where in Spain was the rainfall higher than 1000 mm during the year? Where on the…
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Rivers: the Mediterranean watershed
EduBook Organización
- 2394 visitas
Rivers of the Iberian Peninsula The volume of water in rivers is called the flow. It influenced by climate. The rivers in areas where there is a lot of rain carry more water than the rivers in areas…
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The nature of light
EduBook Organización
- 2324 visitas
2.1. What is light? Light has an undulatory nature; this means it is made up of waves. Visible light (that can be seen by the human eye) belongs to a larger group of waves called electromagnetic waves.…
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Match. International trade
EduBook Organización
- 2313 visitas
It is the main trading power in the world. The countries it includes are small MEDCs that import and export many goods. Due to this continent's lack of wealth, it participates less in worldwide…
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Video: What is CNG?
Tiching explorer Organización
- 2421 visitas
This 3 minute animation explains what CNG is and lists the benefits of this fuel. CNG is Compressed Natural Gas. As a car fuel it is a valuable alternative to petrol or diesel because it emits far less…
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Unit 2: The Earth's climate zones
EduBook Organización
- 2133 visitas
Bush (n): a large plant with lots of branches that is smaller than a tree and grows close to the ground. desert (n): an area of land that receives less than 250 mm of rain per year. Deserts can be hot,…
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Final Autoevaluation 1.02 - Plant nutrition
EduBook Organización
- 2003 visitas
Graph a shows how the size of the pores in the stomata changes when a plant is exposed to light. Describe the changes: ➞ At... o'clock the pores measure... By... o'clock they... bigger/smaller…
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True/false. The atmosphere
EduBook Organización
- 1998 visitas
Are the following sentences true or false? Atmospheric phenomena take place in the stratosphere. The temperature of the atmosphere decreases more or less constantly from the Earths' surface to the…
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