Which soil horizon can hold more water due to the accumulation of fine clay particles?
A) A horizon
B) B horizon
C) O horizon
D) E horizon
Answer: B
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For over 200 years, a census of the entire United States population has occurred every
A) year. B) two years. C) five years. D) ten years. E) twenty years.
What is an example of nonpoint source pollution?
A) toxic waste from a industrial plant B) municipal sewage plant discharge C) coal burning power plant D) agricultural runoff E) None of the above is an example of nonpoint source pollution.
Which of the following organisms is in the same kingdom as humans (kingdom: animalia)?
a) Giant kelp b) Blue-green algae c) Eel grass d) Sea urchin e) Bacteria
________ is a hard shiny coating of dark iron and manganese oxides and clay minerals that form on rock surfaces in arid environments.
A. Corona B. Deflation coating C. Ventifact D. Desert armor E. Desert varnish