Answer:
The answer is Option B, 3 half-lives.
Explanation:
Potassium–argon dating (K–Ar dating) is a radiometric dating method. It measures the radioactive decay of an isotope of potassium (K) into argon (Ar). Potassium is a common element found in many materials like clay and certain minerals. The technique is best suited to dating minerals and rocks more than 100,000 years old. For shorter timescales, it is unlikely that enough argon (40 Ar) will have accumulated. This dating method is used by geologists and paleoanthropologists in order to understand very great expanses of time and the deposits that the earth has formed. One paleoanthropological example of how the technique has been used is in bracketing the age of deposits at Olduvai Gorge where hominin remains have been found. The scientists have dated lava flows above and below the deposits where fossils have been found. Other paleoanthropological discoveries have also been dated using this technique. It is well suited to sites that show evidence of volcanic activity, as in the case of East African sites like Hadar, Ethiopia.
Plate tectonics describes the movement of very large chunks of land underneath the ground. The continents have moved around due to the plates below us moving, which is caused by the internal flow of gasses and molten metal underneath us.
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In order for mining to be successful, the type of action that a company has to take would be to: mine large amounts of high-grade ore.
<h3>What is a higher grade ore?</h3>
This is a term that refers to the iron ore that has very good concentration of minerals as its composition.
The type of iron ore that would companies are going to pay the most money for would be the ones that have a good concentration of minerals.
Read more on mining here: brainly.com/question/5934586
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Answer:
light clothing it will be hot!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Explanation:
Answer:
False
Explanation:
Japan is very famous for their many earthquakes and tsunamis, including the 2011 Tōhoku earthquake and tsunami.
Japan is located on the eastern edge of the Eurasian Plate. The Pacific Plate sinks under the Eurasian Plate.
Since the Eurasian Plate is a continental plate, when the Pacific Plate sinks under the Eurasian Plate it creates a destructive pate margin, causing an underwater earthquake causing a very large tsunami.
