Why did the Eyjafjallajökull volcano in Iceland begin as a passive eruption and become more explosive, emitting ash and shutting down air traffic in Europe?

In short, it was caused by 3,000 consecutive strong earthquakes. and caused by the freezing of lava causing glass particles.

Red clouds were seen at the volcano. The eruption was the result of intense seismic activity and a high rate of characterization in the weeks prior to the eruption. coupled with magma, which fuels the volcano

The second eruption occurred beneath the ice of a glacier. The cold water caused by the melting of the ice quickly cooled the lava and shattered the frozen lava into glass. This produces tiny glass particles which are carried in the ash spout. which that event As a result, airlines that leave Europe and enter Europe have to shut down for several days. coupled with the size of the eruption This is estimated to be 10-20 times the size of the eruption at Fimverduhaus. This resulted in a high-level atmospheric high-level of glass-contaminated ash plumes. which is dangerous for aircraft

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.

this is a good question! i'll do some research and come back when i have the answer!