In addition to conduction losses, heat is also carried out of buildings by uncontrolled air leakage. This is called ____ heat loss.
a. anti-thermal
b. infiltration
c. insulation
d. environmental
b. infiltration
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Two-way joist slabs are commonly known as _____.
a. cross-rib slabs b. waffle slabs c. ribbed slabs d. indented slabs
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Recycling in ecosystems is mainly carried out by:
A. saprophytes and detritivores. B. mycorrhiza. C. large animals feeding on small animals. D. small animals feeding on plants.
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If the time for one cycle is 0.1 second, the frequency is _____.
a. 0.1Hz b. 0.5Hz c. 1Hz d. 10Hz
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Which of the following is NOT an abiotic disease factor?
a. parasitic plant c. soil acidity b. water deprivation d. herbicide
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