____ are made either solid or with a depressed area called a frog.
A. Concrete blocks
B. Slump blocks
C. Concrete bricks
D. Modular bricks
Answer: C
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Worldwide, about ____ breeds of horses exist.
A. 200 B. 300 C. 400 D. 500
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About half of the ____________________ content of a mature plant may be found in the seed and fruit
a. Nitrogen c. Potassium b. Phosphorous d. Fluorine
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Used oil filters should be crushed or drained for 12 hours prior to putting them into a trash container.
Answer the following statement true (T) or false (F)
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Ratchet wheels are used to transform reciprocating motion into ____________________ motion.
Fill in the blank(s) with the appropriate word(s).
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