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
kodGreya [7K]
2 years ago
13

3. If a rock was determined to be around 3.9 billion years old how much Potassium so would be left in that rock sample?

Biology
1 answer:
fomenos2 years ago
5 0

Answer:

The 3.9 billion year old rock has undergone three half-lives (3.9 divided by 1.3 = 3). After 3 half-lives, 12.5% of the potassium-40 remains undecayed.

Explanation:

You might be interested in
A growth composed of more than one kind of neoplastic tissue is called a
azamat
<span>It is a mixed-tissue tumor.</span>
7 0
3 years ago
Explain how waste management is contributing to conversation efforts
miss Akunina [59]

If the waste that society creates is properly managed,  it can be stored or expelled in ways that aren't as toxic to the environment.

5 0
3 years ago
What is the evolutionary advantage of the Guinea worm?
NNADVOKAT [17]
They aren’t dead yet
6 0
3 years ago
The mass of an object multiplied be it's speed is?
qaws [65]

Answer:

momentum

Explanation:

6 0
2 years ago
Why are seasons important?
pickupchik [31]
If we had the same climate every minute of every hour tons of carbon would circulate the earth and climate change would make the polar ice caps melt from all the carbon around
5 0
3 years ago
Read 2 more answers
Other questions:
  • _____ is the process of forming two identical cells from one parent cell.
    12·1 answer
  • What s the largest amount of dna in a plant cell
    5·1 answer
  • What should scientists do after completing a scientific investigation?
    8·2 answers
  • Which characteristics describe the human genetic code
    11·1 answer
  • At which time has the turtle population reached the carrying capacituy of the pond
    7·2 answers
  • observation and inferences are important in science.How would you explain the difference between the two words?
    13·1 answer
  • Dr. Flores wants to know which of the forum claims is best supported by the evidence you have gathered from your previous Sim ob
    5·2 answers
  • Some people choose to have health screenings performed through genetic analysis what is a direct benefit of this analysis?
    10·1 answer
  • Summary about DNA , Genes , Traits , Chromosomes. (Explain &amp; let me know about all 4 words. Summarize all these words.) Writ
    14·1 answer
  • Please help me! Major grade. Tysm!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!