Why is a hot air balloon long and narrow rather than round like a birthday balloon

I believe it's so that it can hold more of the hot air or gas from the fire lit below it to lift you higher

the energy to form plasma comes from heat or electricity in the atmosphere!

sunny~ ☺

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.