with my study guide. you will get 20 points: (only answer if u know)
·how do continental glaciers move?
·a farmer uses weeds and stalks from her previous year's crops to plow her field. what type of soil conservation technique is she using?
·what is a ridge that forms when till is deposited at the end of a glacier?
·how does wind primarily cause erosion?
·what forms when sediment is blown against an obstacle and settles behind it?
·what is the composition of the a horizon?
·how does soil loose its value?

is this for the e2020 class

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.