Answer:
The intermediate to felsic eruptions may be usually moderately to highly explosive
Explanation:
- Felsic lavas are hot, high in silica and volatiles, and have a high viscosity of fluid matter. They are thick and heavy and resistance movements.
- They thus represent the shielded nature of volcanoes etc. Fluid lava flow, tephra, lapilli, and volcanic bombs.
- Felsic magma is rich in feldspar, and silica as opposed to mafic magma which is rich in magnesium and iron.
- Felsic magma is usually acidic.
- As a result of the high intensity of volcanic eruptions, the lava is sticky and dark in color also it's bulky, etc. An example of Mount Saint Helens that erupted destroying both property and human life.
Answer:
b. the porous and permeable, saturated cone of depression in an aquitard.
Explanation:
An aquifer is an underground layer of water, surrounded by a porous, and saturated layer of water bearing rock. The aquifer is lined by a layer of bed of low permeability along its length. This layer is called an aquitard, and it usually forms a depression.
C. a chain of mountains curving along the eastern coast Australia
