You answer would be D.) Genetic Engineering.
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Temperature should it be drawn to 600°-650° Fahrenheit for the newly made spring has been hardened
- Hammer, sear, and trigger are the three main parts of a trigger mechanism.
- . Single-stage trigger is used on the Winchester Model 94 and Marlin Model 336 rifle.
- Lapping is the process called that entails rubbing minute amounts of metal from surfaces that must be precision-finished.
- . Gray to dark blue color would be observe if we achieved the desired drawing temperature of 600-650° Fahrenheit.
- Thermocouple pyrometer is the most common instrument for measuring high temperatures in heat-treating furnaces.
- Cherry to bright cherry color would be observe by reaching the temperature of 1,400°-1,500° Fahrenheit.
- Once the newly made spring has been hardened 600° -650° Fahrenheit temperature would observe.
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The answer is B. Paleozoic
This era was the first era where insects, amphibians, and reptiles roamed the Earth.
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