The Sun's chromosphere contains many jet-like projections that stick up into the transition region. These spikes of gas are called: coronae spicules plages flares prominences

The answer would be  b. hope this !

"central america is subject to fierce which drop large amounts of on the region. another threat in the region is activity such as earthquakes and volcanoes caused by the shifting of the earth's large waves called may result in mass destruction. frequently crops are wiped out causing in the region." where is the question