Which of the following statement is correct 1 Volcanic ash refers to very fine particles that ...........

Geography Earth Geology

Download Solution PDF

Which of the following statement is correct-

1. Volcanic ash refers to very fine particles that erupt from within the earth's crust.

2. Pyroclast is coarser material that erupts from earth's crust.

3. Volcanic ash may circumnavigate the earth's atmosphere many times before setting down as black snow

Select the correct Code:

1 only

2 only

1 and 3 only

All of the above

छोटे Courses बड़े Results

Master Earth Geology

Prepare through Micro-courses

Try Now

Explanation:

1. Volcanic ash is made of tiny fragments of jagged rock, minerals, and volcanic glass. Unlike the soft ash created by burning wood, volcanic ash is hard, abrasive, and does not dissolve in water.

2. Pyroclastic material is another name for a cloud of ash, lava fragments carried through the air, and vapor. Such a flow is usually *very* hot, and moves *rapidly* due to buoyancy provided by the vapors. Pyroclastic flows can extend miles from the volcano, and devastate life and property within their paths.

3. Third statement is correct and self-explanatory.

https://www.nationalgeographic.org/encyclopedia/volcanic-ash/