Question

Which of these substances is usually not present in explosive volcanic eruptions? a.pahoehoe b.aa c.volcanic bombs d.cinders e.volcanic ash

Answer 1

a.pahoehoe

Step-by-step explanation:

• The pahoehoe lava forms from a basaltic rock that is usually dark in color with a smooth or ropey surface it flows slowly as compared to the aa type of lava.

• Hence most of the violent volcanic matter can be seen in the Vulcanian, Peléan, Plinian and Phreatic eruption when the ash is supported by pressure from the gases from a strong explosion firm below.

Answer 2

Cinders is the substance that is usually not present in explosive volcanic eruptions. Volcanic bombs, pahoehoe or lava and volcanic ash are all present in the explosive volcanic eruptions.