____ Testing Determines the Stress Level a Metal Can Withstand

question 15

Multiple Choice

____ testing determines the stress level a metal can withstand without failure when subjected to an infinitely large number of repeated alternating stresses.

• A) Tensile
• B) Hardness
• C) Impact
• D) Fatigue

---

Definitions:

Primordial Earth

Refers to the condition or state of Earth shortly after its formation, before the presence of life.

Amino Acids

Organic compounds that combine to form proteins, serving as the building blocks of life and playing critical roles in cell function.

Hydrothermal Vents

Openings in the sea floor where mineral-rich water that has been heated by the Earth's magma escapes into the ocean, supporting unique ecosystems.

Organic Molecules

Molecules that contain carbon and are found in living organisms.