Answer:
Some brain cells start dying less than 5 minutes after their oxygen supply disappears. As a result, brain hypoxia can rapidly cause severe brain damage or death.
Explanation:
The property of water that allows water to rise in these narrow tubes is Cohesion of Molecules.
True. It's to my knowledge that gas has no smell, so they add this stinky stuff so it can be detected.
I believe the molecule represented in the picture is ATP. Adenosine Triphosphate.