What geomophology and its example​

Geomorphology is the study of landforms, their processes, form and sediments at the surface of the Earth (and sometimes on other planets).

The landforms of deserts, such as sand dunes and ergs, are a world apart from the glacial and periglacial features found in polar and sub-polar regions.

1.)d2.) b3.) athose are the answers for

Magma is outside the volcano  and lava is inside the volcano.