Sublimation;When anything solid turns into a gas without first becoming liquid, <span> When the surface layer of snow or ice turns into fog or steam without melting, </span>
Answer is: a. The storm damaged the air conditioner.
Because air conditioner is outside, storm could damage it.
There is not enough information that the make and model of the air conditioning unit is not compatible for his house, that David has been using his air conditioner too much or the air conditioner was vandalized.
Answer:
"After 1 half-life there will be 50% of the original isotope, and 50% of the decay product.
After 2 half-lives there will be 25% of the original isotope, and 75% of the decay product.
After 3 half-lives there will be 12.5% of the original isotope, and 87.5% of the decay product.
After 4 half-lives there will be 6.25% of the original isotope, and 93.75% of the decay product." -Stephen Frantz, Former Director of the Reed College Nuclear Reactor
Explanation:
The number of protons is the Atomic number