______ is a complex substance composed of large molecules that control inheritance
a. EPA c. DNA
b. USDA d. RNA
C
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Mr. Roberts built a levee averaging 1.6 feet high, 4.4 feet wide, and 8,675 feet long. He used an earth scraper with a capacity of 9 yards to help build the levee. To get the dirt, he lowered the field 6 inches with the scraper.
a. Express the yards of dirt in the levee using scientific notation with one decimal place. b. How many yards of dirt were moved? (Note: Do not forget that the field is lowered.) c. How many trips were made with the earth scraper?
Soil scientists divide mineral particles into size groups called soil separates
Indicate whether the statement is true or false.
In the past thirty years, the number of hogs slaughtered has decreased
Indicate whether the statement is true or false
Technician Asays horizontial adjustment of an oscilloscope affects the time-per-division values. Technician B says changing the vertical adjustment of an oscilloscope affects the volts-per-division values. Who is correct?
A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B