Determine the concentration of oxygen in the liquid phase of a covered pure-oxygen- activated sludge plant subject to 3 atm of pressure (pressure to be selected by instructor). for the purposes of this problem, neglect any reactions occurring in the system. the composition of the gas in the head space above the wastewater is 80 percent oxygen, 15 percent nitrogen, and 5 percent carbon dioxide by volume

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

hope this :

its b it was a compound