The basic building block of a silicate is composed of ________
A) 3 oxygens and 1 silicon B) 2 oxygens and 1 silicon
C) 1 oxygen and 1 silicon D) 4 oxygens and 1 silicon
D
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The use of bacteria and enzymes to convert toxic or hazardous substances to harmless compounds is called ____________________
Fill in the blanks with correct word
Which region of Latin America is one most likely to hear indigenous languages spoken by a majority of the people?
A) an urban area, such as Lima or Rio de Janeiro B) in coastal Brazil, along the Atlantic coast C) in the highland regions of the Andes, or in the volcanic highlands of Mexico and Central America D) in northern Mexico, along with frontier with the United States E) in Argentina and Uruguay
Haiti has presented the most serious threat to U.S. foreign policy interests in the Caribbean since the 1950s
Indicate whether the statement is true or false
The aesthenosphere can best be described as
A) a rigid solid. B) a liquid. C) a plastic. D) a plasma.