The reduction of ozone in the stratosphere could cause:
A) an increase in skin cancer and eye cataracts
B) an increase in plant life growth
C) an increase in the earth's polar ice
D) an increase in marine life growth
A) an increase in skin cancer and eye cataracts
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The high-voltage, low-amperage current supplied to welding machines by commercial power lines is known as _____.
a. primary current b. commercial current c. ordinary current d. secondary current
To correct a(n) ____ problem, a welder can use a smaller electrode at a lower current setting.
A. overheating B. spatter C. penetration D. slag buildup
____________________ is the largest contributor of nonpoint pollution in the U.S
Fill in the blank(s) with correct word
Describe the requirements for a school to be NATEF certified.
What will be an ideal response?