I need help on plural possessives

Are these answers correct?

Balloon races have become popular.

Several aiport's are supporting this race.

An area is reserved spectators.

One spectator's son is in the race.

The occasion is a photographer's delight.

Will all the passengers please climb aboard.

Many photographers' cameras click rapidly.

All the passengers' friends wave goodbye to to them.

Soon they cannot hear their friends' voices.

The balloon soar over one passenger's house.

Please explain if any are wrong.

Thanks

All of your answers are right -- except this one. Do you see what's wrong with it?

Several aiport's are supporting this race.

several airports are supporting this race.

I'd be happy to help with the plural possessives in your sentences! Let's go through each of them one by one:

1. "Balloon races have become popular."
This sentence is correct. It uses a plural noun ("balloon races") to indicate that more than one race is becoming popular.

2. "Several aiport's are supporting this race."
There is an error in this sentence. The word "aiport's" should be changed to "airports" without the apostrophe, as there is no possession being indicated here.

3. "An area is reserved spectators."
There is a missing preposition in this sentence. It should be: "An area is reserved for spectators." This usage correctly indicates that the area is set aside specifically for the spectators.

4. "One spectator's son is in the race."
This sentence is correct. It uses the possessive form correctly to indicate that the son of one particular spectator is participating in the race.

5. "The occasion is a photographer's delight."
This sentence is correct. It uses the possessive form correctly to indicate that photographers find the occasion delightful.

6. "Will all the passengers please climb aboard."
This sentence does not require a plural possessive. It is correct as is, using the plural noun "passengers" without indicating possession.

7. "Many photographers' cameras click rapidly."
This sentence is correct. The plural possessive form is used correctly here to indicate that cameras belonging to many photographers are clicking rapidly.

8. "All the passengers' friends wave goodbye to them."
This sentence is correct. The plural possessive form is used correctly to indicate that the friends belong to all of the passengers.

9. "Soon they cannot hear their friends' voices."
This sentence is correct. The plural possessive form is used correctly to indicate that the voices belong to their friends.

10. "The balloons soar over one passenger's house."
This sentence is correct. It uses the possessive form correctly to indicate that the house belongs to one particular passenger.

In summary, all of the sentences are correct except for sentence #2 which should be revised to "Several airports are supporting this race."