Which characteristics best identifies an arrhenius base ?

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

What type of matter is made of only one kind of atom

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.