The image shows several types of burners used in chemistry laboratories. 
Which of the following is true irrespective of whether the burners use natural gas, propane, or butane as fuel?
Definitions:
Consecutive Hours
A sequence of hours that follow one another without interruption, often used to measure the duration of activities or operations from start to finish.
Naturalistic Observation
Naturalistic observation is a research method where subjects are observed in their natural environment without any manipulation by the observer.
Violent Video Games
Digital games that focus on engaging the player in acts of simulated violence.
Aggressive Behavior
Actions or conduct that are intended to harm or intimidate others, which can be physically violent or verbally aggressive.
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