The reddish-orange colour of weathering of volcanic ash is most likely due to its iron sulfide content which oxidizes to iron oxide so that limonite is yellow and hematite is red and in ash since it is such fine grained material it weathers more rapidly because it has a large surface area.
Because they can only be seen with high density
The jet stream has high altitude rivers of air.
Answer:
Answer is Option A: Glaciers shape a mountain valley.
Explanation:
'Geo' means ground. Geosphere denotes all minerals and rocks that are present on earth. It also refers to all the mountains found on the surface, the liquid rocks which are present in the mantle under the earth's crust and also the metals which are there in the outer and inner cores of the earth.
Valleys created from glaciers is a form of glacier land form. The eroded ice from the land surface carries the broken rocks which result in formation of glacial land forms.
