True or false: Mimi is enthusiastic about baking and has used her grandmother's apple pie recipe for a number of years. Lately, she has been enrolled in pastry classes where she has learned to make six varieties of apple pie, so when she tries to make her grandmother's recipe, she becomes confused about ingredients. This is an example of retroactive interference.

True.

Explanation:

The interference theory explains the memory of the human brain. These memories are long term memories. Two main types of interference are proactive interference and retroactive interference.

The retroactive interference means when the older memories vanishes due to the learning of the new memory. The previously learned memories are forgotten by the individual. The same thing has happened with Mimi as she forgot the previous recipe due to the new memory.

Thus, the answer is true.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.