Weathering and erosion both contribute to the disintegration of rocks. t or f

The statement is - True.

The weathering and erosion processes are both responsible for the disintegration of rocks. Usually it takes longer periods of time, but it can also have a relatively quick effect, depending on the severeness of their influence and the circumstances. They manage to dissolve and break the rocks into smaller pieces, and as it continues, they do have the tendency of making the rocks as tiny sand particles.  

Yes

Weathering is the process categorization of substances through mechanical or chemical operations and Corrosion occurs when exposed substances such as soil and rock particles are transported away by the wind, water or ice. Many forces are perpetrated which cause the process of weathering and depletion, including both natural and man-made circumstances. This will cause rocks to deteriorate.

i think it's 35 meters

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it