Many germs cause ... that make us sick., healthy body, diseases, germs, ... is one of the best ways to stop the spread of many types of diseases., Dusting, Planting, Handwashing, The time you should spend washing your hands must be at least ..., 20 minutes, 20 seconds, 20 hours, Mosquito bites can spread the germs of some diseases, such as ..., dengue fever, malaria, toothache, headache, measles, Clean environments help to prevent ..., diseases, polluting, health, Rubbish attracts ... like cockroaches, rats,  and flies., pests, pets, pats, .... will also attract pests., clean floors, dirty floors, food kept in storage, food not kept in fridge, Too much waste causes ..., plantation, pollution, damage, All waste and rubbish end up on ..., landfill sites, river, forest, Wash your hands before ...., sleeping, watching, eating.

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