How many half-lives would it take for only 25% of the original radioactive isotope to remain? O 1 1 half-life O 2 half-lives 3 half-lives O 4 half-lives​

6/12=1/2

step-by-step explanation:

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

did yall get answers for this yet

false.

explanation:

this statement is false. after falling for 5 seconds, its speed will not be 100 m/s.