Why does radioactive dating work?

How many atoms of beryllium are present in a room with the dimensions of 8 feet by 13 feet by 15.1 feet if a sample of air contains 12.8 micrograms per meter cubed? Will relative humidity increase or decrease when warm air rises about the frontal surface? Why do i have High amylase and low lipase results? When was Blowing in the wind released? The accompanying figure shows the electron transport chain what is the combination of substances that is initially added to the chain? What is the formula of lead sulphide? In aerobic respiration the last carrier protein in the electron transport chain transfers? What is Global Warming Can you feel it? What natural disaster has allowed us to learn more about the roman city? When graphite is in extreme heats and pressure for a long period graphite turns into which minerals? What temperature does melting occur? How many kilos is 30lbs? How is the concentration of a solution determined? Is a cell phone a pure substance? Why are sometimes clouds in the sky that don't rain or snow? If an antacid weighs 2.50g and contains 400mg magnesium hydroxide what is the percentage of the tablet that is magnesium hydroxide? Are there any sedimentary rocks in North Carolina? Is juipter a cold or hot planet? The controlling organelle within a cell is the? Why did William think he had to teach the north- east a lesson that they would not forget?