Answer:
6.70 grams of krypton-81 was present when the ice first formed
Explanation:
Let use the below formula to find the amount of sample

where

here
t = 458,000 years
= 229,000
= \
n =
= 2.000
Now substituting the values




Answer:
srry i cant help u with this im so confuse like u just put all of it on there how would anybody answer tht!
?!Explanation:
Answer:
The claim is incorrect because the exact position of matter is always visible or can be determined.