Biotechnology promotes agricultural sustainability.
Answer the following statement true (T) or false (F)
True
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Chemical manufacturers and importers must develop or obtain a material safety data sheet for _____ .
A. only chemicals that can burn or asphyxiate users B. any substance that can cause a chemcial reaction C. everything from hazardous chemicals to electrical equipment D. each hazardous chemical they produce or distribute
Por lo general, el agregado grande se coloca _____.
a. directamente sobre el lecho de colada b. después de levantar el panel c. en un lecho de arena de albañilería d. en una capa fina de lechada
Whether hunting, traveling, or in the back yard, cats commonly bury their feces
A. True B. False
The welding accessory that uses a steel surface and piece of flint is called a _____
a. sparker b. fuel-gas lighter c. friction lighter d. igniter