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What is the ignition temperature range of Natural Gas?

  1. 1100 F - 1200 F

  2. 1200 F - 1300 F

  3. 900 F - 1000 F

  4. 1000 F - 1100 F

The correct answer is: 1100 F - 1200 F

Natural Gas has an ignition temperature range of 1100 F to 1200 F. This means that in order for Natural Gas to ignite and sustain a flame, the surrounding temperature must be within this range. Option B is incorrect because 1200 F to 1300 F is outside of the ignition temperature range for Natural Gas. Option C is too low, as it falls below the minimum temperature of 1100 F. Option D is close, but just below the maximum of 1200 F. Therefore, A is the correct answer for the ignition temperature range of Natural Gas.