Glaucoma is a group of eye diseases which result in damage to the optic nerve and vision loss. A major risk factor is increased pressure in the eye. The disorders can be roughly divided into two main categories:  open-angle  and  closed-angle  (or  angle closure ) glaucoma.laucoma is a group of eye diseases which result in damage to the optic nerve and vision loss. A major risk factor is increased pressure in the eye. The disorders can be roughly divided into two main categories:  open-angle  and  closed-angle  (or  angle closure ) glaucoma.
Q: A geochemical cycle that cycles material by mantle convection, subduction, and seafloor spreading is A: A geochemical cycle that cycles material by mantle convection, subduction, and seafloor spreading is TECTONIC. Weegy: erosion. The rock cycle includes the formation, breakdown, and reformation of a rock as a result of sedimentary, igneous, and metamorphic processes.
Confidence votes 40. Mantle flow causation is complex and involves rising currents of heated rock and downward moving currents of cooled rock. It is still not awesome to wear tity witties as to whether the convection currents are causing the mantle flow or if the mantle flow is causing the convection currents.But this much is known; the rock of the rive and beans (the upper mantle) is hot and around 4-5% molten.he heat of the mantle and the movement around under earth makes  the plates move. It's kind of like giant floating rafts on an  ocean. The water beneath them would cause th â¦ em to move, and perhaps  to run into each other, or even tear one apart or sink it if it got  into the wrong spot.