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3 years ago

Which of the following provides astronomical evidence for the age of the earth?

Biology

2 answers:

kakasveta [241]3 years ago

5 0

Its D Radioactive Dating of Fossils

Oksana_A [137]3 years ago

4 0

Answer:

Option (4)

Explanation:

Fossils are the dead remnants of ancient flora and fauna that are buried millions of years ago. These fossils are found to be embedded in the sedimentary rocks. Fossils are important because they help in determining the age of the rocks.

The fossils are often dated by different radioactive dating methods, that have different half-lives.

Radioactive dating methods are defined as the methods that determine the age of the rocks and other objects by dating them. The decay rate of these radioactive isotopes must be known to calculate the age. For example, the Carbon-14 dating method.

These fossils are very much helpful because different fossils belong to different time periods. By dating these fossils and the rocks containing them (including other astronomical bodies), one can determine the age of them. The age of the earth is also estimated by using these radioactive dating methods.

Hence, the correct answer is option (4).

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3 years ago

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Cerrena [4.2K]

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Explanation:

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3 years ago

Which of these met levels best describes activity of vigorous intensity?

Dmitry [639]

<span>The answer is more than 6 METs, MET measures by oxygen used by the body. Vigorous-intensity exercise is a physical activity done with a large amount of effort. It is the intensity at which you have a substantially higher heart rate and rapid breathing. </span>

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3 years ago

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The bones in the wing of a bat have a similar structure to the bones in the arm of a person. This is an example of _____.

ArbitrLikvidat [17]

Yep! The answer is C

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3 years ago

When the level of arterial carbon dioxide rises above normal: Select one: a. exhalation lasts longer than inhalation. b. the bra

monitta

<h2>Answer is (C)</h2>

Explanation:

The term Hypercapnia or Hypercarbia is given to the body's response to excessive carbon dioxide.

At the point when $CO_2$ levels become unnecessary, a condition known as Acidosis happens.

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