List some of the reasons that amphibians are disappearing
What will be an ideal response?
Human encroachment into habitats, destruction of habitat, insecticide, removal of food sources, over collection and exploitation to supply the hobbyist market and environmental concerns.
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List the six major shortcomings of coordinate tolerancing.
What will be an ideal response?
The movement of spray droplets by wind is called ____________________
Fill in the blank(s) with correct word
Newer-style gun burners with special air-handling parts should be set in what range of CO2 percentage?
A) 11 - 13% B) 9 - 11% C) 7 - 9% D) 0 - 3%
A narrow differential gap in an on/off mode control system has which of the following characteristics?
A. small deviation from the set point B. large deviation from the set point C. less frequency of cycling D. rapid cycling E. both a and d