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IrinaK [193]
3 years ago
13

How does carbon-14 help scientists determine the age of a fossil?

Social Studies
1 answer:
stich3 [128]3 years ago
5 0
It is used to determine the age of an ancient object. The process is  called radiocarbon dating. Carbon-14 is a naturally present isotope that is produced when cosmic rays collide with nitrogen and as a result it is oxidized to be become CO2. 
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In what way can piggy with his spectacles be seen as representing the rational, scientific aspects of society?
Ira Lisetskai [31]
Piggy is the most rational member on the island. He's intelligent, level headed, and thinks before he speaks. Jack and the other boys are threatened by his ability to vocalize his thoughts in a rational manner and his loyalty to Ralph. Thus, they demean him at every opportunity. Piggy's glasses also represent science and civilization. They make fire, which makes them an object of desire. His glasses also symbolize the ability to see clearly with clarity and understanding.
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3 years ago
Read 2 more answers
How did Greeks win at Marathon?
Strike441 [17]

Answer:

Explanation:

According to herodotus' Account The flanks of the Athenian defeated the persians. and then engulfed the persians in the center. And well, The athenians won the battle Killing an estimated 6,400 persians while losing only  192 men ( these numbers were likely exaggerated by herodotus).  Hope this helped :)

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3 years ago
Distinguish between native, nonnative, indicator and keystone species. Give an example of each. Explain why amphibians are good
Leokris [45]

Answer:Native specie are species that naturally lives in an ecosystem.They are usually assisted by new species.

Non native specie;These are species that exist outside their natural range.They usually exist where they have not naturally occured and they don't hinder the presence of other specie in the ecosystem.

Indicators are organisms whose existence is largely dependent on the condition of the ecosystem.

Key stone specie;These species have significant impact on their eco system.Non existence of these species can cause significant regress In an ecosystem.

Causes of decline of the listed species.

1)Pathogens and pest.

2)Human causes.

3)Loss of habitat.

4)Loss of pollinators and other plant partners.

Owl as an indicator specie has declined.

Explanation:

3 0
3 years ago
How can a couple successfully transition from friendship to romance or vice versa?
sdas [7]

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4 years ago
Which selection below explains who was responsible for enforcing the laws under the Articles of Confederation?
jeka57 [31]

Answer:

D. entrusted to Congress

Explanation:

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The executive branch enforces the laws because the president approves it.

The judiciary branch only helps send laws through to the other branches.

The states had all the power so they controlled a lot of the government.

5 0
3 years ago
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