Environmental Knowledge Items

Overall Correct Responses n (%)

The most frequent means of disposing solid waste is landfill

97 (52.4)

Improper sewage treatment can cause diseases outbreak

147 (79.5)

Car exhaust contribute to greenhouse gas effects

117 (63.2)

The easiest and most effective way to avoid becoming ill is

frequent hand washing with soap and water

142 (76.8)

Trigger for asthma can be cockroach infestation, mold and

second hand smoking

127 (68.6)

Potential source of radiation exposure include TV and computer,

ultraviolet light, and smoke detectors

77 (41.6)

The number one risk factor for lung cancer among non-smokers is Radon

33 (17.8)