Multi-point adjustable scaffolds may be bridged together only if:

It can only be done if the weight of the scaffold must be supported by both the structure to which it is attached. It must be suspended from metal outriggers, brackets, wire rope slings, hooks or means meets equivalent criteria for durability, strength, etc.

The answer would be sand and gravel

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.