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romanna [79]
3 years ago
7

Which of the following is the primary technique for determining the absolute age of a rock?

Biology
2 answers:
Tanya [424]3 years ago
6 0
A) Scientists measure the radioactive decay of the elment isotpes.
Reil [10]3 years ago
3 0

Answer;

Measuring the radioactive decay of element isotopes.

The primary technique for determining the absolute age of a rock is the measuring the radioactive decay of element isotopes.

Explanation;

The measuring of the radioactive decay of element isotopes to determine the age of rocks is called Radiometric Dating.

Radiometric dating is a method of determining the absolute age of an object such as rocks by comparing the relative percentages of a radioactive (parent) isotope and a stable (daughter) isotope.

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The average person blinks 25 times per minute how many times do they blink per year
Serggg [28]

If the average person blinks 25 times per minute you have to multiply and times it by 60(which is an hour) to equal {1,500} . Next times the number 1,500 by 24 because that is how many hours are in a day so that would equal {36,000} times a day. Now times 36,000 by 7 because that is how many days of the week so {252,000} is the answer per week.


Now to figure out how many times we blink in a year we will multiply

252,000 by 52 because there are 52 weeks in a year.


You get the answer 13,104,000


So you blink 13,104,000 times in a year.


Hope this helps

4 0
3 years ago
Which of the following represents an ion
EleoNora [17]
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7 0
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marissa [1.9K]

Answer:

The thoracic cavity is "Superior" to the abdominopelvic cavity. Superior ... If an incision cuts the heart into right and left parts, a "Sagittal" plane of section was used

Explanation:

The thoracic cavity is mainly located in the chest region which also have neck and the diaphragm in it. In the thoracic cage the thoracic organs are safely placed. The thoracic cavity lies above the abdominopelvic region. The sagittal plane is the vertical plane which runs from the front to back of the body. The sagittal plane helps in splitting of two equal halves like the left and right one.

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The sun and moon's____pull make the oceans go from low tide to high tide once every day
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Explanation:

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