Answer:
b. more felsic
Explanation:
The sequnce of crsytallization of magma as , first is the ultramafic which is at at very high temperature , then is mafic at intermediate temperature , and felsic at lowest lowest temperature , at the final stage .
Hence , the composition of earth beneath the surface is like mafic while the surface has felsic .
When the crystallizing magma is assimilated or contaminated with the crystal rock and then the magma enhances the light color or the felsic minerals added into magma due to the assimilation of the crystal rocks .
Therefore , the magma increases the felsic nature via assimilation .
Now , When a rock undergoes partial melting , then low temperature or light color minerals released first into melts and hence , becomes more felsic .
Answer:
True
Explanation:
The use of shadows to determine an objects height from aerial photographs is an essential part of satellite image interpretation. The length of the shadow is used to determine the height.
Orthophoto is a type of satellite imagery that has been adjusted using special devices. This kind of imagery is correct geometrically, this means it can be used to measure actual distances One notable fact about orthophoto is the fact that the side of the images can not be seen. The use of shadows to determine an objects height can compliment the geometrically accurate photos. That makes the shadow feature of a satellite image important to orthophotography.
