This the answer to the question you asked:)
Answer:
hot air rises and expanded the balloon
Explanation:
thats it.
Answer:
Australia is correct
Explanation:
Because it is not attached to any other place
10 degrees, i think.. god i hate cemestry... sorry if it's wrong
Answer:
a. and b. both are correct. the number of electrons and neutrons IN THIS CASE of nitrogen Is same.