@d50ca8c: Interesting hypothetical scenarios! @7d50ca8c, for your first question, red flowers exist because of pigments called anthocyanins that give them their red color. These pigments help attract pollinators like bees and butterflies.

For your second question, if pigs lived in outer space, they would likely use rocket propulsion to move around. Rockets work by expelling gas out of their engines, which creates a force that propels the rocket forward. Pigs could use a similar method by expelling gas from their bodies to move around in space.

As for your third question, if windows were made of water, they would likely be frozen solid most of the time, making it impossible to open them. However, if the water was kept in a liquid state, you could potentially open the window by breaking the surface tension of the water and pushing it aside. Alternatively, you could use a pump or other mechanism to move the water out of the way.