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
kvv77 [185]
4 years ago
6

how can scientists accurately compare atmospheric composition today with atmospheric composition thousands of years ago?

Biology
1 answer:
Vinil7 [7]4 years ago
3 0

Answer:

They accurately compare the current atmosphere with the previous one, by assessing the amount of atmospheric gases present today, with the amount of atmospheric gases trapped in ice cores that they believe are millennial, that is, they have existed for thousands of years ago.

Explanation:

As we know, it is difficult to compare current characteristics of the planet earth with characteristics that the planet had in the past, thousands of years ago. This is because the ancient characteristics on earth are not fully available to be analyzed, since most of them have been modified over time.

To do this, scientists need to find factors that may have existed thousands of years ago and assess whether these factors have any account of the characteristics of the earth. In the case of atmospheric characteristics, it is common for scientists to compare the current atmosphere with the atmosphere of thousands of years ago, with the assessment of the amount of atmospheric gases trapped in ancient ice cores, with the amount of atmospheric gases present in the atmosphere today.

You might be interested in
The genetic code was originally deciphered, in part, by experiments in which synthetic polynucleotides with repeating sequences
AveGali [126]

Answer: a peptide containing alternating arginines and alanines.

Explanation:

As the mRNA has a repeating unit of CGCG.

Now if we extend the units with more CG (CGCGCGCGCGCG) the pairing will be as CGC-GCG-CGC-GCG. and if we see the amino acids coded by these codons are arginine for CGC and alanine for GCG.

As this synthetic mRNA doesn't require any initiation codon (AUG) thus the polypeptide will not have methionine, which is the first amino acid in every polypeptide coded by the initiation codon.

Thus, the synthetic mRNA will code for peptide having alternating arginines and alanines amino acids.

8 0
3 years ago
The number of atoms of each element before the reaction and the number of atoms of each element after the reaction must be _____
wlad13 [49]

Answer:rearrange

Explanation:

4 0
3 years ago
Which structure is unique to eukaryotic cells?
Lena [83]
The answers D. Nucleus because both Eukaryotic and Prokaryotic cells have DNA (its circular in PK and Linear in EK).
Both cells have ribosomes and both have a cell membrane. However Prokaryotic does not have a nucleus and only Nucleoid DNA.

The blue wiggle is the nucleoid DNA, and the red dots are ribosomes

4 0
3 years ago
Read 2 more answers
Which fat is most likely a solid at room temperature?
blsea [12.9K]

Answer:

one that is saturated

Explanation:

<em>Unsaturated fat turns to liquid at room temperature. Saturated fat has do not have double bonds in their molecular structure.</em>

8 0
3 years ago
If we flipped a coin 100 times. How many times would we have to get heads to be significantly
MrMuchimi

Answer:

24

Explanation:

thats my guess

3 0
3 years ago
Read 2 more answers
Other questions:
  • What happens when a ligand binds to a ligand-gated Na+ channel? There is no net flow of sodium ions. Sodium ions are pumped from
    15·1 answer
  • Need help can’t figure out????
    11·2 answers
  • A student conducts an experiment to determine how the amount of water given to a plant affects its growth. What is the independe
    9·1 answer
  • Which vascular plant organ is most dependent on surface area to carry out its<br> function?
    8·1 answer
  • What happens to the cells of cartilage in a growth plate?
    14·1 answer
  • Give an example of physical weathering.
    12·1 answer
  • What are the good and bad benefits of biomolecules​
    11·1 answer
  • Genetic variation can be increased by???
    15·2 answers
  • You've just attended a football game with your friend Kaylee, who has Type I diabetes mellitus. Though Kaylee drank only one bee
    9·1 answer
  • Which antibody identified in prenatal specimens is never a cause of hemolytic disease of the fetus and newborn
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!