Question

radiometric dating with potassium - 40 was used to find the absolute age of rocks on the moon. based on the data below, what can you conclude about the maria rocks compared to the highlands rocks?
moon maria rocks dated using potassium - 40

number of half lives	age (in millions of years)
0.25600	3200
0.26136	3267

moon highlands rocks dated using potassium - 40

number of half lives	age (in millions of years)
0.3312	4140
0.34016	4252

maria rocks formed after highlands rocks.
highlands rocks formed after maria rocks.
maria and highlands rocks formed around the same time.
there is not enough evidence to determine when maria and highland rocks formed in comparison to each other.

Explanation:

Step1: Analyze Maria rocks age

The ages of Maria rocks are 3117, 3200, 3267 million years.

Step2: Analyze Highlands rocks age

The ages of Highlands rocks are 3978, 4140, 4252 million years.

Step3: Compare ages

Since the ages of Maria rocks are less than those of Highlands rocks, Maria rocks formed after Highlands rocks.

Answer:

Maria rocks formed after Highlands rocks.