Which of the following is not stage in the development of a thunderstorm

The formation of thunderstorm takes place through a cycle. It has three stages. Cumulus stage, Mature stage and dissipating stage are the three stages. Strong updrafts act to build up storm in the first stage.Heavy precipitation and winds are experienced in second stage. It gets weakened in the third stage.

The reaction 2kalsi3o8 + 2(h+ + hco3-) + h2o  →  al2si2o5(oh)4 + 2k+ + 2hco3- + 4sio2 shows that feldspar kalsi3o8 is chemically altered by hydrolysis to form chalky-looking clay mineral kaolinite al2si2o5(oh)4. the chemical breakdown of potassium feldspar due to exposure to acidic water results to the mineral binding with the water molecule to become kaolinite with silica and potassium and bicarbonate ions in solution.