Question

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1⃣. ᴄᵒᵐᵇᵘˢᵗⁱᵒⁿ 

2⃣. ⁱᵍⁿⁱᵗⁱᵒⁿ ᵗᵉᵐᵖᵉʳᵃᵗᵉ 


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Answer 1

Combustion- The process of giving out heat by a substance after the reaction with oxygen is called combustion..

Ignition temperature- The temperature at which a substance catches fire is called its ignition or kindling temperature..

Answer 2

combustion :-
A chemical process in which a substance reacts with oxygen to give off heat is called combustion .
ignition temperature :-
The lowest temperature at which a substance catches fire is called its ignition temperature ..
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