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A contaminación sonora e a saúde
EduBook Organización
- 5487 visitas
A intensidade dos sons é a enerxía que teñen as ondas sonoras que viaxan polo aire. A unidade de medida desta magnitude é o decibel (dB). Nas grandes cidades prodúcense normalmente moitos…
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Check. Natural hazards
EduBook Organización
- 5213 visitas
Review what you have studied and answer the questions: What is a hazard? What are the four great natural hazards on Earth? What preventive measures should there be in areas near an active volcano? What…
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Autoavaliación 3 - As formas da Terra
EduBook Organización
- 3970 visitas
Indica a que conceptos fan referencia as definicións seguintes: Parte do volcán formada polos materiais que este expulsa. Sacudida que se orixina no interior da Terra e que fai que trema a súa codia.…
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Completa as frases
EduBook Organización
- 3946 visitas
Completa as seguintes frases: Materia é todo aquilo que ten e que ocupa un . O é a ausencia de materia. Medir unha magnitude é cunha unidade. As propiedades xerais da materia son a e o . A dun…
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Complete. Matter and measurement
EduBook Organización
- 3861 visitas
Complete the sentences with the missing words: Matter is everything that has . A is the absence of matter. To measure a magnitude is to it with a unit of measurement. The general properties of matter…
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Match. Forces and their characteristics
EduBook Organización
- 3725 visitas
Match the types of forces with their characteristics. The force is perpendicular to the surface and if the surface is horizontal, its magnitude is equal to the weight of the object. Objects held by…
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A emigración por provincias e destinos
EduBook Organización
- 3455 visitas
A maior cantidade de emigrantes galegos a Europa son orixinarios da provincia de Ourense, con volumes que nalgúns anos da década pasada superaron por si sós o total das restantes provincias galegas.…
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Self-evaluation 3 - The Earth's relief
EduBook Organización
- 2957 visitas
Which concepts do the following definitions refer to?: The part of a volcano made of the materials it expels. Strong tremors originating inside the Earth that can cause the crust to rupture. An…
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True and False. Equilibrium
EduBook Organización
- 2458 visitas
Answer true or false: An object is in equilibrium when the sum of the forces acting upon it is equal to zero. If an object is in equilibrium it cannot be moving. A block at rest hanging on the cable of…
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