1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MrRissso [65]
3 years ago
6

In the late 1700s scientists proposed that the layers in the rocks of mountains and canyons represented a record of the passage

of time, with the younger layers lying on top of the older layers. What could they determine about the fossils they were finding in the rocks based on this observation?
A. Fossils in upper layers were younger than fossils in lower layers.
B. Fossils in upper layers were less weathered and more detailed than those in lower layers.
C. The exact age of a fossil could be determined by counting the rock layers.
D. The oldest fossils were the same as the ones found in younger rock layers.
Geography
2 answers:
ehidna [41]3 years ago
7 0
One thing scientists in the late 1700s could determine about the fossils they were finding were fossils in the upper layers were younger than fossils in lower layers. The correct answer is A. 
Ann [662]3 years ago
3 0

The correct answer is - A. Fossils in upper layers were younger than fossils in lower layers.

The scientists managed to determine that the rock layers of the mountains and the canyons are arranged by time, and that they are a nice representation of the geological past. Because the scientists proposed this, that also means that the rock layers are undisturbed by geological process, thus they are arranged by age, one over the other, with the oldest being at the bottom, and the youngest at the top.

When it comes to the fossils, this meant that now the scientists can now the approximate age of the fossils, depending on the layer in which the fossils are found. So the closer they are found to the surface, the younger they are, and the deeper they found, the older they, the same as the rock layers.

You might be interested in
How could the movement of tectonic plates create another supercontinent like pangea?​
scoray [572]

Answer:

The plates are moving and have been for billions of years... they collide and they rip apart. ... The plates carry the continents on their "backs"; if two plates -each with a continent- collide, then a supercontinent can be created.

Explanation: hope this helps

8 0
3 years ago
Main Sequence Stars - Tau Ceti. If protostars accumulate sufficient mass as they develop, collapsing gas and dust may reach temp
coldgirl [10]

Answer:

The correct answer is: b. intermediate- to low-mass stars (between 0.8x to 8x the mass of our Sun).

Explanation:

Once the hydrogen in the nucleus is finished, the hydrostatic equilibrium is broken, and gravity is able to overcome radiation. This causes the star's core to contract, thus increasing its internal temperature and density. Meanwhile, due to convection, the outer layers expand, so the external temperature decreases. The star increases its external size becoming what we know as the Red Giant.

By increasing the temperature in the core, the necessary conditions are given to begin to fuse Helium and convert it into Carbon. So the core is getting denser and the outer layers of the star expand even more.

The end of our star is marked by the moment when the helium in the nucleus ends. In addition, the outer layers are so far apart that they no longer exert sufficient pressure to compress the core and trigger carbon fusion. In parallel, the star is so large that the outer layers of the star escape the gravity of the star, pushed by radiation. In this way, the interstellar medium of helium, carbon and a little oxygen is enriched. Leaving behind a White Dwarf, the nucleus of the star in which Helium has become Carbon.

8 0
3 years ago
Scientists can use __________ to determine the age of an igneous rock surrounding a fossil.
svp [43]
I think that they can either use fossils or age of rocks
3 0
3 years ago
Read 2 more answers
What line is at 2322 S?
kenny6666 [7]

<u>Tropic of Cancer </u>is the line of latitude at 23.22 S

Explanation:

This is the southernmost, of the equator latitude at which the sun can appear overhead. Equivalent to this latitude to the north of the equator is the <u>Tropic of Cancer</u>. Higher latitudes never really have overhead sun. The sun is overhead the <u>Tropic of Capricorn</u> on 21st December.

As the earth revolves around the sun, the sun shifts positions – relative to the latitudes-, due to the shift of orientation of the earth with respect to the sun. The sun is overhead the tropic of cancer on 21st June and is overhead the equator on 20th March and 22nd September.  

Learn More:

For more on Tropical latitudes check out;

brainly.com/question/890831

#LearnWithBrainly

5 0
3 years ago
Which environmental problem is affecting Tuvalu?
lara [203]
B.climate change...thats the answer
4 0
3 years ago
Other questions:
  • according to the maps, which region has greater variety in elevation - Greece or Rome? How do you know this?
    6·2 answers
  • What are possible solutions that may be used in the future to address agricultural issues?
    12·1 answer
  • Geography! will mark brainliest due today help please!!
    15·1 answer
  • Why do geographers use different terms to discuss these groups.
    6·1 answer
  • Explain Why are the electromagnets in MRIs kept at<br>very low temperatures?​
    11·1 answer
  • What year was the Mexican revolution that overthrew the caudillos and established a new constitution?
    6·1 answer
  • Which part of the sun lies directly above the visible “surface” of the sun?
    12·2 answers
  • Match the items with each other.
    6·1 answer
  • How have human systems and political systems shaped the Russian Core?
    6·1 answer
  • Switzerland is made up of how many cantons?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!