In an experiment, a science class filled a plastic bottle with room temperature olive oil and placed it in the freezer for two hours. when the bottle was observed at the end of two hours, the volume of the oil had decreased, which caused the bottle to contract. what happened?

The first answer is b. then the second one is a

Sorry this isn’t really an answer i just need to answer two questions. i hope that you find the answer that your looking for though

Psychologists often talk of the magical number "7" - so it is generally assumed that we can keep 7 (more or less, so 5-9 is the correct answer) items in our short term memory - we know this as a result of many experiments.

we can increase this by chunking, so for example "7 8 9 5 3" is harder to remember than "78 95 3" - try it yourself!

the answer is a)