If Oxygen disappeared for 5 seconds

Plants make O2 . Fotosynthesis

 

glucose + oxygen = energy + water + CO2
plants produce more oxygen than they use

 

Nitrogen is worse, makes up 71% of the atmosphere and its required by plants for photosynesis

 

Plants photosynthesise to produce the glucose used in respiration to grow. Photosynthesis is more or less the reverse of respiration.

 

for 5 seconds it is ok sucks for all birds though and people in planes.
plants do not use nitrogen in photosyntesise, i do not know what they use it for

 

Nitrogen is not required for photosynthesis. That would be CO2. It is still important though. The nitrogen cycle is vital and plants need nitrates.

 

Plants do not require the direct form of nitrogen, but rather nitrate. Nitrate is brought to plants by Nitrogen fixation, which occurs by nitryfying bacteria or lightning. But without nitrogen, plants don't have nitrate therefore they can't go through with photosynthesis

 

Nitrogen is needed by plants to make amino acids (the most basic form of proteins). However, plants can only use nitrates as nitrogen isn't reactive enough. The nitrogen cycle is how nitrogen is converted to all its different chemical forms. If I remember correctly, nitrates for plants can be made by 3 different processes. Nitrogen in the air can be converted into nitrates by nitrogen fixing bacteria in plant roots/the soil. Lightning (also a form of nitrogen fixation)converts nitrogen in the air into nitrates. The haber process is used industrially to produce ammonia from hydrogen and nitrogen - this ammonia is used in fertilisers, nitrifying bacteria in the soil converts the ammonia into nitrates.

Oh yeah, and nitrogen is about 78%, not 71%.

 

Nitrates are not required for PHOTOsynthesis, but rather for BIOsynthesis - you may be confusing the two. The amino acids the nitrates are used to make are then formed into whichever protein is needed to form a particular structure.

 

The daytime sky wouldn't turn almost black, but would instead turn about 21% black. So like a late afternoon. This is because there are still 79% of molecules left to reflect light.
Also, I doubt you'd get sunburnt that quickly.
Finally, the inner ear would not explode (I think). The pressure outside would decrease the same amount as thd pressure inside, so the pressure difference would remain the same.

 

Precisely. The oceans won't turn into gas if we're talking about oxygen molecules.

 

I was going to make a joke about choking OP (for 5 seconds) ....but

 

As long as the airplane is under 10,000 feet and isn't using an engine which utilizes combustion to fly you would be fine

 

You took this out a blog/article and never credited it

 

What would happen if the sun disappeared for 5s?

 

There's a really interesting VSauce video on this. I recommend watching it.

 

Yep, and most of it's wrong...

 

i am more worried about there being less air to keep you up. Without air planes fall like a brick.

 

This was taken from a YouTube video