القطعه الثانيه
a- why is the study of the kinds rocks important to geographers?
Because many of the things they are concerned with depend on rock formations
b-why are igneous rocks usually in structure or glassy in appearance?
These rocks have all formed molten materials
c-how are volcanic rocks formed?
When molten material (lava) poured out to the earth's surface and then cooled quickly
d- to which class of rocks do gritstones and clays belong?
Sedimentary rocks
e- what do the Sedimentary rocks formed by the remains of sea animals and plants consist of mainly?
Calcium carbonate
f- what is the main material in the Sedimentary rocks formed by the remains of veretion in former "swamp forests"?
carbon
g- how are ****************morphic rock formed?
By changes in temperature or pressure or both
h-how are ****************morphic rocks different from Sedimentary rocks ?
إجابة هذا السؤال اخر ثلاث سطور في القطعه they differ in two .......الخ