1.Calculate the frequency of a chemical shift at 1.25 ppm using a 400 MHz NMR spectrometer. A)1500 HzB)450 HzC)320 HzD)500 Hz

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.