For which type of research study is a research question rather than hypothesis expected

Why have the aztec ruins in mexico city not been dug up?

Read the graph that displays interest and total payments on a loan. banks make the most money and take the most risk with an interest rate of 5 percent. 10 percent. 15 percent 18 percent.

Kate is 14 years old and just started taking dance classes with her friends at a local dance studio. this is her first time in a dance program, so everything is new to her. her friends convinced her to join the class since they have been enjoying it for a few months. how could the following terms her succeed in the dance class? ● secondary reinforcement ● identity vs. role confusion ● observational learning how could the following terms hinder her success in the class? ● circadian rhythm ● basal ganglia ● vestibular sense