Answer:
Today, one second is defined as “9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom”. That's a mouthful.
Answer:
the frog won't have nothing to eat then they will die and the snake won't eat the frog.
Explanation:
Vein because they have valves to prevent back flow of blood.
Answer:
I wrote all of this on the thing, but it wouldn't work. Here is the PDF I did. Good Luck.
Explanation:
