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Calculating volume and mass
EduBook Organización
- 1801 visitas
A block of granite is 30 cm high, 40 cm wide and 50 cm in length. The granite density is 2.6 g/cm3. What is the mass of the granite expressed in kilograms? To solve the problem, we do the following…
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The extinction of the dinosaurs
EduBook Organización
- 1802 visitas
In 1980, American scientists proposed that the cause of the extinction of the dinosaurs, which occurred about 65 million years ago, was the result of a meteorite hitting Earth. According to this…
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Answer. The air and its components 4
EduBook Organización
- 1804 visitas
Where does the water vapour in the air we breathe come from?
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Final self-evaluation 4 - The Hydrosphere
EduBook Organización
- 1799 visitas
Complete the text with the missing words: Water is a very good of all types of solid, and gaseous substances. Living beings absorb many substances for life because they are dissolved in . At the same…
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Structure of a tapeworm
EduBook Organización
- 1801 visitas
Adult tapeworms are intestinal parasites of vertebrates. They have a very simple structure. Tapeworms do not have a respiratory, circulatory or digestive system. Their body is ribbon-shaped, with a head…
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Answer. Invertebrates (6)
EduBook Organización
- 1799 visitas
Classify the following edible molluscs into the groups: bivalves, cephalopods and gastropods. octopus – snail – cuttlefish – oyster – squid – clams – mussels
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Final self-evaluation 10.09 - The Animal Kingdom (I). Invertebrates
EduBook Organización
- 1791 visitas
Complete the following sentences with the missing words: Starfish belong to the group of invertebrates. The bodies of arthropods are divided into a head, thorax and . The bodies of arthropods are…
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Summaries - The Earth's surface: shaping human activity
EduBook Organización
- 1812 visitas
1. Continental relief: the great land masses The continents are the large land masses that separate the oceans. There are six in the world: Africa: mountainous with many plateaus and basins with rivers…
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Answer. Mediterranean relief
EduBook Organización
- 1799 visitas
List some of the main elements of relief along Spain's Mediterranean coast.
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Describe. European temperate landscapes
EduBook Organización
- 1798 visitas
Using the photographs and graphs, explain the characteristics of the three types of temperate climate in Europe.