In a closed-loop system, the plastic water pipes that are buried in the Earth are called ____.

A. ground loops
B. thermal loops
C. water loops
D. both a and c


Answer: D

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A tool used to make a hole for a seedling transplant is called a ________.

Fill in the blank(s) with the appropriate word(s).

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When animals are working, they sweat more and require extra salt to make up for the salt being lost

through sweat.

Indicate whether the statement is true or false.

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Find the inverse ratio of 11/19:3/19 and express as a fraction in lowest terms.

What will be an ideal response?

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The rack and pinion gear system changes a rotary input motion to a(n) ____ output motion.

A. linear B. faster rotary C. oscillating D. reciprocal

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