Answer:
Left amount of Polonium-210 after 115 days will be 4.5927 microgram
Explanation:
We have given initial mass of Polonium-210 
Decay rate x= 0.502% = 0.00502
Time t = 115 days
We have to find the left amount of Polonium -210 after 115 days
We know that left amount is given by

So left amount of Polonium-210 after 115 days will be 4.5927 microgram
The picture it’s not clearly
Answer:
I believe this answer would be C. It looks fairly stable so it should remain that way over time.
Explanation:
What the hell is this a answer
No they can't there's no air in space space is like a vacuum it suck up all the air