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The air we breathe is made up of oxygen and other gases. We know what we're breeding because we can detect the presence of oxygen through a number of different methods. One way is to use a device called a gas detector, which can measure the amount of oxygen in the atmosphere. Another way is to use an infrared camera, which can detect the difference between oxygenated and deoxygenated blood cells.
What else can I help you with?
How do you know if you are in another driver's blind spot?
when he slams you .you will know.. if you cant see his mirror he cant see you !
What is this bug?
I dont know I cant see it
Where can you see the circus?
cant dont know
Why do blinds wear dark eyeglasses?
so people know they cant see, also they cant see so they dont know where to move their eyes
How do you get to the safe haven?
I see alot of things that say you have to go under breeding, then to office, then it should be there. But i dint that and i cant find it.
you can feel and breath me but you cant see or touch me what am i :hint it keeps you alive?
oxygen ( or air )
Where to get a tapir?
You cant 'get' a tapir but you can see them in captivity tapirs are incredibly endangered so lots of zoo's are breeding them so any zoo will do
What type of butterfly is this?
i dont know i cant see it!
How do you know you cant see ghosts?
ghosts aren't real
How do you know when a tablet has dissolved in water?
you know it is dissolved mainly because you cant see it.
How do scientists know when the crust is moving if they cant see it?
They don't know, they just guess
You cant see videos?
Yes you can! You might not be able to know how to download them?
