Choose the magma type which is most viscous: basaltic andesitic rhyolitic

Option (3)

Explanation:

Rhyolitic magma is the most viscous and rhyolite is the volcanic equivalent of granite. In the case of Rhyolitic magma, the silica content is more than 65%. This type of magma generally forms because of the wet melting of continental crust. This magma when traps gas in it or it comes in contact with water, then it becomes highly explosive and violent, producing a large amount of pyroclastic materials. It leads to the production of rocks such as Pumice along with other ash deposits.

Thus, the Rhyolitic type of magma is highly viscous.

Thus, the correct answer is option (3).

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.