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Toys and games

1) Devices that are used exclusively for recreation and play. Toys are most often used with children and pets and as a medium of education and development. Toys are not always obvious in their nature. A simple bottle can be considered a toy if an individual uses it for recreational use. 2) Games are structural activities used for physical or psychological education. In most cases, games are recreation. However, games can also be considered work. For example, a professional soccer game is a career to the participants.

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食品鏈

Environment; Environment statistics

每個使用序列的下一個較低成員作為食物源生物序列。

浸出

Environment; Environment statistics

取消堿和可溶性的過程從土壤鹽的大量的灌溉和排水。

生物多樣性

Environment; Environment statistics

遺傳差異、 不同物種和生態系統的差異,在某一地區的範圍。

熱解

Environment; Environment statistics

在無氧的極端高溫應用通過有機物質的分項數位。

排放標準

Environment; Environment statistics

最大造成污染的法律上允許從單個源,移動或固定的排放量。

薰蒸劑

Environment; Environment statistics

這是燒焦和蒸發至殺死害蟲的農藥。它用在建築物和溫室的 。

生物積累

Environment; Environment statistics

元素和化合物的生物組織中的有害物質的積累。

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