What is the study of matter and it's

Name the element in group 17, period 2. (periodic table)

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.