Answer to Question 1
Answer: Different sedimentary rock types indicate the physical and chemical processes active in ancient depositional environments. Sedimentary structures reveal details about physical processes in the depositional environment. Cross-beds also reveal the direction of moving water and air currents that transport sediment. Changes in environments or processes produce boundaries between beds of sedimentary rock. Observations of vertical successions of rocks with different features allow geologists to interpret environmental change over time.
Answer to Question 2
Answer: The melting temperature of granite is much lower than that of peridotite. Partial melting in the presence of water begins at lower temperature as the pressure increases. This result also is seen for peridotite and is, indeed, a characteristic shared by all magmas. As pressure increases, more water dissolves into the magma, which means that magma can hold more water at high pressure than at low pressure.
Hemiphlebia mirabilis, the Ancient Greenling, is a species of damselfly in family Hemiphlebiidae.
These top and side views reveal the R groups extending out from the β sheet and emphasize
![People have seen patterns in the stars since ancient times.[5] This 1690 depiction of the constellat](https://biology-forums.com/gallery/47/medium_12359_26_01_13_3_44_40.png)
People have seen patterns in the stars since ancient times.[5] This 1690 depiction of the constellat
Metamorphic Rocks
Rocks are Aggregates of Minerals