GEOLOGY

EARTH SCIENCE

PALEONTOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Relative age of a rock is
A
its exact age
B
its age compared to the age of other rocks
C
different from the ages of fossils found in the rock
D
based on how much carbon 14 is in the rock
Explanation: 

Detailed explanation-1: -Relative age is the age of a rock layer (or the fossils it contains) compared to other layers. It can be determined by looking at the position of rock layers. Absolute age is the numeric age of a layer of rocks or fossils. Absolute age can be determined by using radiometric dating.

Detailed explanation-2: -Steno’s principles are essential for determining the relative ages of rocks and rock layers. In relative dating, scientists do not determine the exact age of a fossil or rock. They look at a sequence of rocks to try to decipher when an event occurred relative to the other events represented in that sequence.

Detailed explanation-3: -Relative age refers to the approximate age of a specific rock layer. It is determined by comparing its position to other rock layers. The process used to establish whether a rock layer or a geologic event is older or younger than the other without knowing their specific ages is called relative dating.

Detailed explanation-4: -The relative age of a rock is its age in comparison with other rocks. If you know the relative ages of two rock layers, you know which is older and which is younger, but you do not know how old the layers are in years.

Detailed explanation-5: -The differences between relative and absolute age dating are: Absolute age dating represents an age based on the half-lives of radioactive minerals whereas, relative age does not characterize specific age. Absolute age is found by using radioactive minerals in the rock.

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