Answer:
Spiders and ground beetles.
Why is Anthony so mean? Don't hurt the beetles!
One way you could measure this is hitting the two metals with a mallet and seeing which one has more of a dent
Answer:
263.1 is exactly three half-life, so the remaining portion is (1/2 x 1/2 x 1/2) of the original sample. That's 1/8 which is 12.5%
