The answer is D. The rice cooker / pot.
hope this helps !
invisable
you probably dont want to put that...
<span>Chemical and physical actions of groundwater form </span>Karst topography.
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%
