The earth’s magnetic poles create which of the following? a. a magnetic field around the earth b. magnetic resistance of earth c. the tides in the oceans d. geographic north and south

It creates a magnetic field around the Earth.

Nerves are problay the number 1 thing in the body

By water evaporation from the leaves is created a negative pressure at the top of the tree that promotes the ascension  of the water through channels that are called xylem. there are also two molecule forces that are involved: the intra-water molecules cohesion (water molecules stick to each other) and the adhesion when the water molecules stick to the channels they are running in. this is what enables water to go from the roots to the top of a tall tree.