Write questions about the free flying lesson, using will and these words.
1. How long/last How long will it last?
2. What kind of plane/ fly in …………………….?
3. Where/ take place ……………………?
4. Need/ insurance ……………………?
5. How long/ in the air ……………………?
6. Be/ dangerous ……………………?
7. Really/ enjoy ……………………?
8. Instructor/ help me ……………………?
9. How much/more lessons/ cost ……………………?
10. When/have/my/lesson ……………………?

do your own work !

the answer is a (apex)

where is the sentence at?

the gas pressure p, gas volume v, and gas temperature t are given in the formula:   pv=nrt,

r is the gas constant, and n is the number of gas moles.

if the container is cooled and remains under atmospheric pressure, where r is a constant that does not change, the volume of the container remains the same, the conclusion is drawn that, with all other values ​​unchanged, the number of gas moles n, is decreases.

the right answer is a.