The breakdown of large rocks into smaller pieces is ________
A) primarily caused by topsoil erosion
B) unaffected by winds
C) called mineralization
D) affected by rainfall, freezing, and thawing
E) a major cause of topsoil erosion
Answer: D
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What needs to be done to convert a neutral nitrogen atom into an N-3 species?
A. add three electrons B. remove three protons C. remove three electrons D. add three protons E. add three nitrogens
The discovery of radioactivity destroyed Lord Kelvin’s argument for a relatively young Earth no
older than 400 million years. Indicate whether the statement is true or false.
Compared to a trough, a ridge has ________ pressure
Fill in the blank(s) with the appropriate word(s).
Which of the following best matches the description?Process of breaking up large particles by physical forces.
A. soil profile B. horizon C. asthenosphere D. soil texture E. mechanical weathering F. parent material G. weathering H. loam I. leaching J. friable K. windbreak L. humus M. contour farming N. soil structure O. chemical weathering P. terrace Q. lithosphere