Which term means human-made liquid, solid, or sludge waste that may endanger human health or the environment? a. sewage b. hazardous waste c. groundwater d. non-biodegradable waste

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.