Answer: Noise
Explanation: According to the communication process, noise is defined as the factor due to which the sender to receiver communication gets interfered .The transmission of the message gets disrupted due to noise.
Ralitza is also facing a barrier while in the class and thus not able to focus on the class discussion. The thought of calling her parents is acting as the noise source in the mind of Ralitza.
Answer:
Flammability is a chemical property because combustion is a chemical change. A chemical change is a process in which one or more substances are converted into one or more new substances with different properties. Flammability is a measure of how easily something will burn. Gasoline (petrol) is highly flammable.
Explanation: