Question

2 fill in the blanks to complete the sentences. not all answer choices will be used. the law of superposition allows geologists to determine the ages of rock layers. although it doesn’t tell us exactly how old the strata are, this law tells us rock layers form on top of ones. absolute relative older younger

Explanation:

1. The law of superposition is used to compare the age of rock layers without assigning exact numerical ages, which is relative dating.
2. Absolute dating provides the exact age of strata, which the law of superposition does not do.
3. The law states that new rock layers form on top of existing, older layers, meaning the upper layers are younger than the lower ones.

Answer:

1. The law of superposition allows geologists to determine the relative ages of rock layers. Although it doesn't tell us exactly how old the strata are, this law tells us absolute rock layers form on top of older ones, making the top layers younger (unused term: younger is the final unused option, with the blanks filled as relative, absolute, older)

Completed sentences:
The law of superposition allows geologists to determine the relative ages of rock layers. Although it doesn't tell us exactly how old the strata are, this law tells us rock layers form on top of older ones (with the remaining term being absolute for the exact age reference, and younger as the unused choice).

Final filled blanks in order:

1. relative
2. absolute
3. older