Answer:
Dilapidated- D. Rundown
Explanation:
Dilapidated Definition- Partly ruined, destroyed.
Closest meaning to that is rundown.
Explanation:
45 because I got the answer
I believe it’s c, I don’t know
Hope it helps
D - considering the audience
It is 4. because it says in the paragraph and I quote: "helium has a very low density. it is used in daily weather balloons to carry instruments that record, tempature, humidy, and pressure readings in the atmosphere.