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We can speak to other people via the Internet. The quality of the connection is lower than with a telephone call, but it is much cheaper, especially for international calls. The best solution is to…
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How industrial activity evolved Craftsmanship In the Middle Ages, the master craftsman owned his workshop and tools. The production process was slow and labour intensive. These artisans belonged to a…
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The cypress tree is a conifer of the northern temperate region. It is evergreen with needle leaves. The yew tree can reach up to 20 m in height and can live for 1500 years. Firs are especially abundant…
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Concrete is a mixture of cement, sand, gravel and water. It is used a lot in construction. To shape the concrete, the wet mixture is poured into a wooden or steel frame until it dries and becomes hard…
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Analogue thermometers work due to the changes in volume in their column of liquid. Thermometers have a glass tube with a liquid that dilates when it heats up and contracts when it cools down. The…
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We obtain the vitamins and minerals we need by eating a balanced diet that includes fresh fruit and vegetables. These are the most important vitamins:
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Different types of economic activity The economic development of a country is a reflection of its economic activity. Economic activity is made up of three sectors: the primary sector (agriculture,…
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International environmental policy To deal with the problems of the environment and climate change on an international level, there are meetings and summits between the world's countries. The first…
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Our sense of balance is also located in the ear. This sense tells us about the position of the head and its movements. It consists of liquid-filled structures in the inner ear with specialist sensory…
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Find out. Nectar
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Flowers produce nectar to attract insects. Look for information about nectar. What is its function? Why are insects attracted to it? Find out if any other animals are attracted to the nectar in flowers.
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