Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

A)loud music at a party

Physical noise can be one obstacle to effective communication. Physical noise refers to the existence of external stimulus that does not allow us to receive a message sent by a communicator, or to receive it accurately. This includes things such as background noise. In this case, the existence of loud music at a party would be considered physical noise.

Abrasion

Physical weathering is a process of break down of rocks into smaller particles or sediments, with the effect of physical agents such as wind and water. Abrasion is a type of physical weathering process. In this process, eroded sediments affect the surface of the exposed rocks with friction, and wears away the particles from the exposed rocks. Abrasion is only one type of physical weathering which breaks the rocks into smaller fragments.

b. Fibres

Explanation:

Fibres is a physical evidence because it comes from a  a nonliving origin. other examples are, fingerprints, tire marks, footprints,  paint, and building materials .

Evaporating rubbing alcohol

Noise is anything that interferes with communication.Physical noise is interference that is external to both speaker and listener. Physical noise  hampers the physical transmission of the signal or message.

Loud music at a party is a example of physical noise. Correct A Other example is irritating hum of your computer, air conditioner, or heater.

The answer for this question would be Frost wedging.

the answer is A. Just took the review

The correct answer is option a. "ice forming in cracks of rocks".

Explanation:

Physical weathering is a geological process that results in rocks breaking apart, but with a physical force that does not change its composition. Ice forming in cracks of rocks is an example of physical weathering known as Ice wedging. It results from water seeping down into the cracks of rocks, and when the temperature drops and water freezes, the water cracks the rocks as it expands when it becomes ice.