1) Wastes which do not decompose naturally in the environment cause pollution and are also harmful to the living beings are called the______________________ a) Biodegradable waste b) Nonbiodegradable waste 2) Wearing dirty clothes causes __________________. a) Skin infection b) Food poisioning 3) __________________ and garbage allows growth of mosquitoes, flies and bugs. a) Stagnant water b) Dry waste 4) Wastes that decompose naturally in the environment and are considered safe for the environment are called__________________________ a) Biodegradable waste b) Nonbiodegradable waste

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