Social Studies, 07.12.2020 20:50 daisymae1172

THIS IS A TEST WORTH 30 POINTS PLS HELP Question 1 (3 points)
Why can the geologic record be analyzed by looking at different rock layers?

Question 1 options:

All layers have the same age.

The layers have different ages with the youngest layers on top.

The layers have different ages with the oldest layers on top.

The layers have different ages with the youngest layers on bottom.

Question 2 (3 points)
What can be used to determine the relative age of two rocks?

Question 2 options:

vertical position

the presence of unconformities

radioactive dating of each layer

relative age cannot be determined

Question 3 (3 points)
Which factor is the most accurate in determining the absolute age of two rocks?

Question 3 options:

vertical position

the presence of unconformities

radioactive dating of each layer

comparing fossils in the layers

Question 4 (3 points)
The half-life of an element is 150 years. If a 40-gram sample was originally deposited, how much is left
after 300 years?

Question 4 options:

30 grams

20 grams

10 grams

5 grams

Question 5 (3 points)
Which example is a trace fossil?

Question 5 options:

dinosaur footprint

dinosaur bone

dinosaur egg

shark tooth

Question 6 (3 points)
Which type of fossils are used to identify specific time periods?

Question 6 options:

trace fossils

body fossils

index fossils

all fossils

Question 7 (3 points)
Which example is a trait of an index fossil?

Question 7 options:

resembles a living species

found in a limited area

found in a limited time span

a particular kind of organism

Question 8 (3 points)
What type of geologic change does the image show?

Question 8 options:

folding

tilting

erosion

lack of depostion

Question 9 (3 points)
Which series of words describes lengths of geologic time from longest to shortest?

Question 9 options:

eon > era > period

era > period > eon

period > eon > era

era > eon > period

Question 10 (3 points)
Consider the geologic time scale shown below. A scientist discovered two fossils. Fossil A is from the Triassic time period. Fossil B is from the Cambrian time period. Which one is older?

Question 10 options:

A is older.

B is older.

They are the same age.

We cannot determine which one is older.

Answers: 3

Show answers

Answers

While it may seem obvious today, most people at the time did not believe that fossils were once part of living creatures. The reason was that the fossils of clams, snails, and other marine animals were found in tall mountains, miles from any ocean. Two schools of thought explained these fossils. Some religious writers believed that the shells were washed up during the Biblical flood. But this explanation could not account for the fact that fossils were not only found on mountains, but also within mountains, in rocks that had been quarried from deep below Earth’s surface. Seeking an alternate explanation, other writers proposed that the fossils had formed within the rocks as a result of mysterious forces. In other words, fossil shells, bones, and teeth were never a part of a living creature!

Steno had other ideas. For Steno, the close resemblance between fossils and modern organisms was impossible to ignore. Instead of invoking supernatural forces to explain fossils, Steno concluded that fossils were once parts of living creatures. He then sought to explain how fossil seashells could be found in rocks far from any ocean. As in the Tyrannosaurus rex Figure 11.10, fossils resemble living organisms.Explanation:

Answer from: ethangorrell67

Explanation:

Answer from: Quest

answer; limbic system;

Answer from: Quest

answer; no longer than a reasonable period of time;

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THIS IS A TEST WORTH 30 POINTS PLS HELP Question 1 (3 points)
Why can the geologic record be...

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