Answer:
Explanation:
When 238U which is radioactive turns into 206Pb , it becomes stable and no further disintegration is done . Hence in the initial period ratio of 238U undecayed and 206Pb formed will be very high because no of atoms of 238U in the beginning will be very high. Gradually number of 238U undecayed will go down and number of 206Pb formed will go up . In this way the ratio of 238U and 206Pb in the mixture will gradually reduce to be equal to one or even less than one .
In the given option we shall calculate their raio
1 ) ratio of 238U and 206Pb = 5
2 ) ratio of 238U and 206Pb = 4
3 )ratio of 238U and 206Pb = 1
4 ) ratio of 238U and 206Pb = 20
5 )ratio of 238U and 206Pb = 3
lowest ratio is 1 , hence this sample will be oldest.
Ranking from youngest to oldest
4 , 1 , 2 , 5 , 3 .
Answer:
left column: If you can see some animals, you may see a bird with a fruit or nut in its beak. Once it lets go of the object, it drops due to gravity. If a fruit drops from a tree with examples like in Newton's famous example, it is also due to gravity.
Explanation:
withxamples too.)Right column: Think about it like the moon, you wouldn't be able to walk, just float around. If to simply try to put food on a plate, it wouldn't stay. Sitting down at your table to attend class. You'd float away along with your laptop.(you come up wiht e
The correct answer is this one: "length of address." The element that is not part of Aristotle's rhetorical triangle is the length of the address. The rhetorical triangle of Aristotle are the logos, pathos, and ethos. Logos is the logic, Pathos is the audience emotion, Ethos is the speaker's credibility.
Answer:
there is not enough information
It’s a because I just did it
