Fill in the Blanks AIR POLLUTION AND HEALTHOnline version PRIMARY SCHOOL. 6TH GRADE by Gonzalo Barral 1 quality pollutant gases organisms vehicles pollution problems ill health industry lungs breathe majority clean condition achieve combustion micro reduce gases smoke respiration particles tobacco correctly bodies kitchen defence bacteria In order for our to function and to occur normally , the air that reaches our must be and in good . Currently , it is very difficult to this due to . The discharged by motor and affect our bodies , since they air and fill the air with pollutant . These particles make it difficult to and can cause serious . Furthermore , there are and viruses in the air , which can make us . However , our bodies have mechanisms to ensure that the of the - with which we are in contact on a daily basis do not affect us . There are also pollutant gases inside our houses , one of which may be , if any members of your family smoke , or caused by poor in the .