These are the first 20 elements on the periodic table which of these elements had 20 protons in its nucleus (atomic number = 12)? 1. He

2. S

3. Mg

4. C

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.