with/includes/dump/kind/inside ĐIền vào chỗ chấm ____________________________________________________________________ Visual pollution can happen outside or (1) your house. When you are in the street, do you look around and see too many telephone poles, overhead power lines, or advertising billboards? This is known as a ‘negative visual environment’, and it causes visual pollution. For many communities, visual pollution also (2) uncut weeds, graffiti, litter, and even badly cared-for buildings. This (3) of pollution can be present in your house, too. If you dump clothes or school things on the floor, it causes visual pollution. A room (4) too much furniture placed in an untidy way is another example of visual pollution in the house. You may not know that when you go out without wearing appropriate clothing, you can also cause this type of pollution.