Answer:
potassium-argon dating
Explanation:
Potassium-argon (K-Ar) dating technique is the most appropriate dating method for establishing the age of a volcanic ash. It is most applicable for dating minerals and rocks more than 100,000 years old. It is based on measuring the product of the radioactive decay of an isotope of potassium (k) into argon (Ar). Since potassium is a common element found in many volcanic ash layer, the time since re-crystallization is calculated by measuring the ratio of the amount of argon 40 (Ar-40) accumulated to the amount of potassium 40 (K-40) remaining in these volcanic ashes.
Answer: The halocline refers to the region below the mixed layer where the salinity changes as you move deeper underwater.
Answer:
Explanation:
If circumference of the earth along the equator is 24,901.92 miles, and there are 360 degrees in a circle.
24,901.92 / 360 = 69.172
157 x 69.172 = 10860.004
Answer: In terms of oil reserves, the Middle East is second to none. This “oil miracle” of the world has been shaped by a set of favorable factors, some global and others local, inscribed in the geologic history of the region.
24 is the answer...............
