Answer:
After three half-lives, it is 7:1
Explanation:
- The rate at which the decay of the radioactive isotope is said to be half-life and is represented as the half-life of the atoms and the matter to disintegrate itself.
- The two radioactive isotopes are K 40 and Ar 40. After the K-Ar dating, they contain minerals such as the clay mica and the temphra minerals and Half-life of the K 40 is 1.3 more than 100,000 years i.e 10x9 years for Ar 40.
- <u>Thus the K 40 has to divide as three half-lives have passed if the ratio of argon to potassium atoms is 7:1. At the end of one half-life, the ratio of the number of argon to potassium atoms is 1:1. and two half lives its 3:1 thus after the third half-life it becomes as 7:1.</u>
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Answer:
The Hatay Province
Explanation:
The Hatay Province is the southernmost province of Turkey. The province is disputed by Syria because it used to be part of Syria when Syrian was under French domination. It were the French who ceded the province to Turkey during the French mandante, and once Syria became an independent country, the Syrian government has never recognized the cession.
When an El Niño kicks in. During an El Niño, the trade winds weaken in the central and western Pacific. Surface water temperatures off South America warm up, because there is less upwelling of the cold water from below to cool the surface.
There's few reasons why these three states have mild and rainy climate, most important of which are:
- Pacific trade winds; the Pacific trade winds are bringing fronts of the Pacific that are moving eastwards towards the western part of the USA. These winds are warm and wet and they bring in lot of precipitation with them.
- Mountain ranges; the mountain ranges that are stretching through these three states and that lift up the terrain significantly east from the coast are crucial because they stop the Pacific trade winds from going further inland and disperse, so they stop their movement and give them the opportunity to accumulate more and more clouds and thus higher precipitation.
- Ocean currents; the dominant ocean currents along the shores of these states are cold ocean currents both from the south and the north, so the colder water manages to affect the coastal regions and drop their temperature by few degrees.
