Which causes spontaneous combustion?

Which causes spontaneous combustion?

Question 1 of 2707066636eec28f7522a1c51c0a1

Which causes spontaneous combustion?

Question 1 of 27070

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Which causes spontaneous combustion?

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🔍 Key Concepts

• Spontaneous combustion definition in basic fire science • Difference between internal chemical heat buildup vs. external heat sources • How spontaneous combustion commonly occurs in oily rags or organic materials

💭 Think About

• Ask yourself: Does spontaneous combustion require heat coming from outside the material, or can it happen with no outside heat source? • Look at each option and decide which describe heat coming from inside the substance and which depend on something external. • Think about real-world examples: oily rags in a pile, damp hay bales, or coal piles—what is actually causing those to ignite?

✅ Before You Answer

• Verify which choice describes no external ignition source being needed. • Identify which options clearly involve outside heat input rather than internal chemical reaction. • Before picking an answer, be sure you can clearly define spontaneous combustion in one sentence in your own words.