a scientist is analyzing the oldest known mineral sample collected from the surface of mercury. it is…

a scientist is analyzing the oldest known mineral sample collected from the surface of mercury. it is discovered that 50% of the original amount of uranium - 238 remains in the sample. question: using the graph above, determine the age of mercury. 9000 million years (9 billion) 4500 million years (4.5 billion) there is not enough evidence provided to answer this question. 18000 million years (18 billion)

a scientist is analyzing the oldest known mineral sample collected from the surface of mercury. it is discovered that 50% of the original amount of uranium - 238 remains in the sample. question: using the graph above, determine the age of mercury. 9000 million years (9 billion) 4500 million years (4.5 billion) there is not enough evidence provided to answer this question. 18000 million years (18 billion)

Answer

Explanation:

Step1: Locate 50% on y - axis

Find the point on the y - axis where the amount of uranium - 238 remaining is 50%.

Step2: Read corresponding x - value

Draw a horizontal line from the 50% point on the y - axis to the curve, then draw a vertical line down to the x - axis. The x - value is 4500 million years.

Answer:

4500 million years (4.5 billion)