Maybe just buy another ticket? or call someone to come bring it to you.
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.
A geologist's job includes determining the history of an area.
Answer: Option C
<u>Explanation:</u>
Geologists are researchers who studies the materials available in the earth about their nature, characteristics and their age. Speaking of the age of the materials it helps to understand the history of the earth, Each area in the earth's history has undergone several civilizations and lifestyles.
Also, it has experienced various natural changes or special space happenings. By working on that with the founded specimens or collected evidence they can create reports. That can help to get a clear understanding of the climatic changes, history and topography of the species are in the world.
Check on Socratic it might help 1234 45567 free
Answer:
i think its 1st option
<em><u>Ground</u></em><em><u> </u></em><em><u>water</u></em><em><u> </u></em><em><u>can</u></em><em><u> </u></em><em><u>come</u></em><em><u> </u></em><em><u>to</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>surface</u></em><em><u> </u></em><em><u>by</u></em><em><u> </u></em><em><u>natural</u></em><em><u> </u></em><em><u> </u></em><em><u>(</u></em><em><u>non</u></em><em><u> </u></em><em><u>man</u></em><em><u>-</u></em><em><u>made</u></em><em><u> </u></em><em><u>)</u></em><em><u> </u></em><em><u>processes</u></em><em><u>.</u></em>