1) The cutting down of trees in a large area. a) Deforestation b) Erosion c) Oil spill 2) It prevents harmful ultraviolet light from the sun from reaching Earth. a) Ozone layer b) Climate c) Earth 3) Damage caused to water, air or soil by harmful substances or waste. a) Pollution b) Deforestation c) Natural resources 4) The process by which land changes into a desert. a) Desertification b) Flood c) Tsunami 5) An extremely large wave caused by movement of the earth under the sea, often caused by an Earthquake. a) Tsunami b) Volcano c) Tornado 6) A mountain with a large circular hole at the top through which lava gases, steam and dust are or have been forced out. a) Volcano b) Desert c) Forest 7) Animals or plants which may soon not exist because there are very few now alive. a) Endangered species b) Extinct species c) Natural resources 8) Unwanted matter or material any type. a) Waste b) Pollution c) Fumes/gases 9) Number and variety plant and animal species in a particular area. a) Biodiversity b) Climate c) Biodegradable 10) General weather conditions usually found in a particular place. a) Climate b) Habitat c) Biodiversity

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