Elements and Compounds and Mixtures

  1. The various resources on Earth exist as elements, compounds or mixtures.   Elements 1. An element is the simplest form of matter.   2. An element is a pure substance that cannot be split up into simpler substances by...

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The Various Resources on Earth

  1. The Earth's crust contains a vast number of useful natural resources which are needed to sustain life or to be used in everyday life.   2. Natural resources are resources that are provided by nature. Humans cannot make...

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