Which situation is a result of geotropism? A stem turns to grow upward against gravity.
Gravity pulls down on all parts of a plant.
Leaves are supported on strong stems.
A plant falls down when it wilts.

Ibelieve it's temperature! i'm not 100% sure.

The surface of the water droplet is held together by the attraction between molecules. in order for water to flow more easily into these small spaces, you need to decrease its surface tension. you can do this by adding soap, which is a surfactant (a material that decreases the surface tension of a liquid).