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
drek231 [11]
4 years ago
13

You are an archaeologist researching artifacts left behind by Francisco Pizzaro's conquest of Peru in the 1530s. In order to con

firm the authenticity of the leather artifacts, you are performing radiometric dating using an isotope pair that has a half-life of 250 years. In order for the artifacts to date back to the time of Pizzaro's conquest, approximately how much original radioactive isotope must be left in the artifacts
History
1 answer:
balu736 [363]4 years ago
5 0

Answer:

25%

Explanation:

The percentage of radioactive isotope that must be left in the artifacts is 25%

You might be interested in
HURRY!!!!!!!!!!!!!!!!PLS!!!!!!!!!\
UkoKoshka [18]

Answer:

I believe the answer is d

Explanation:

8 0
4 years ago
What increased cotton processing?
Olenka [21]
The invention of the cotton gin. 
6 0
3 years ago
Read 2 more answers
In recent years, a decline in economic productivity has occurred in some countries as a result of______. A. nationalism. B. The
aksik [14]

Answer:

Option D.

The AIDS has become the global pandemic in recent years.

Explanation:

  • AIDS is the disease caused by HIV retro virus. It suppresses the immune system and causes gradual sickening of the host and finally death.  
  • The Black Death or Plague is the disease that affects humans and mammals. It is caused by bacteria and human suffer when bitten by rodent flea or handling of animals infected. It was one of the worse pandemics in the 14th century in Europe.  
  • The Spanish flu was the disease that became pandemic in 1918. It is caused by virus H1N1 influenza virus, similar to the virus of birdflu.  
6 0
3 years ago
Cells can make certain molecules when needed for a certain function. What happens when those molecules are no longer needed? The
Ilya [14]
It would be the last choice. <span>They are stored for later use.</span>
8 0
4 years ago
Economic Problems 1931-1932 1. The unemployment rate rose sharply. 2. Americans deeply in debt could not pay back their loans. 3
oee [108]

Answer:

Option c

Explanation:

Great Depression in the United States started around September 4, 1929 leading to hardship and decline in the economy as a result of the stock market crash, bank failures, over-production and drought.However as the economic depression and crisis deepened, between 1931 to 1932, banks began to fail at alarming rates which lead to closure of banks. This was as a result of bankruptcies and defaults increased as people were unable too pay their loan couple with anxious people withdrawing their deposits, forcing banks to failure.It's estimated that 4,000 banks failed by the end of 1933 .

5 0
3 years ago
Other questions:
  • Which event led to the federalist centralist war in Mexico
    9·1 answer
  • एeoजा.
    13·1 answer
  • What made Lee's situation at Petersburg so grim?
    5·1 answer
  • In what ways did the American colonists react to the policies Britain instituted 1763- 1774
    6·1 answer
  • HELP NEEDED ASAP! PLEASE
    8·2 answers
  • Geneva, from where reformer John Calvin led the Protestant community
    7·1 answer
  • 5. Do you think that Britain was right in asking the colonists to pay for the British soldiers that Britain kept in the colonies
    14·1 answer
  • How did the Great Depression affect Latin America?
    13·2 answers
  • What year did the supreme court unanimously decide to desegregate schools?
    11·2 answers
  • What year was the first civil war
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!