How Trees Bend the Laws of Physics

... May we have the solution to the questions, also? I went through the concours too but I am very rusty. See also Veritasium on that topic: ▶ this video

> all it should take is a system of valves, That would work, but it's not how to works apparently. According to this veritasium video, it's because of "negative pressure" aka tension. ▶ this video I recommend watching, I think it's one of the best veritasium Dereck has ever produced.

▶ this video It's an old video, more than ten years ago, but it aged well IMHO. I re-watched it and re-learned things I have forgotten.

Just recently watched a Veritasium video on how trees get water from the roots to the top of the tree, and it's pretty awesome: ▶ this video

This is an interesting video with an alternate explanation - the pressure required to get water to the top of the tree. Normally you can only suck a water column up 10 meters, and that's using a perfect vacuum - but trees can grow higher than that. The secret sauce is that in a liquid rather than a gas, you can have a negative pressure. ▶ this video