Infinitely many planes contain any two given points- it takes three (non-collinear) points to determine a plane.
Yes.No. Any two planes will be contained in infinitely many planes, not "exactly one".
It need not have any.
No. Two planes may be parallel and so may not intersect. Also, any line is the intersection of infinitely many planes, not just two.
just one
You take the total population of the world and deduct how many of them are on the surface of the earth at any given time.
On average, there are about 9,700 planes in the sky at any given time. This number can vary depending on factors such as time of day, air traffic, and geographic location. Flight tracking websites like Flightradar24 can provide real-time information on the number of planes in the air.
Infinitely many planes contain any two given points- it takes three (non-collinear) points to determine a plane.
654
At any given time, a human hand may contain as many as 5,000 germs.
There are approximately 5,000 germs on your hand at any given time
Yes. At any given time there are about 2000 thunderstorms occurring, many of them in the tropics.
Everyone who isn't underwater or in outer space
Yes.No. Any two planes will be contained in infinitely many planes, not "exactly one".
Since it's a global site - there are probably millions browsing the site at any given time.
It need not have any.
There are an infinite number of planes that pass through a pair of points. Select any plane that passes through both the points and then rotate it along the line joining the two points.