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2018-6-29 Air pollution occurs when harmful or excessive quantities of substances including gases, particulates, and biological molecules are introduced into Earth's atmosphere.It may cause diseases, allergies and also death of humans; it may also cause harm to other living organisms such as animals and food crops, and may
2001-7-9 The effects of human activities on the quan-tity and quality of water resources are felt over a wide range of space and time scales. In the following discussion, “short term” implies time scales from hours to a few weeks or months, and “long term” may range from years to decades. “Local scale” implies distances from a few feet to a few
2018-7-3 Hunting is the practice of killing or trapping animals, ... or scientific research activities which involve tranquilizing or tagging of animals or birds. The practice of foraging or gathering materials from plants and mushrooms is also considered separate from hunting. Skillful tracking and acquisition of an elusive target has caused the word hunt
2013-8-4 But it is often other human activities - deforestation, growing crops on steep erodible land, building houses (often the homes of the very rich or the very poor) on vulnerable sites, construction of earth-destabilising roads or dams, irrigating in the wrong place - that prime hillsides for collapse.
2018-3-11 Cities become more vulnerable to climate change impacts causing ... Selangor. Meanwhile, on-site observations were carried out on gardening activities and the gardens' physical attributes. The study sample encompasses of 131 urban farmers of 22 community gardens in Subang Jaya. It was found that most of the community gardens practiced crops