What is an example of a check on a congressional power?

Hye-seung is giving a speech on turtles, specifically on the need to protect the turtle population in the pacific ocean due to rising ocean temperatures. the general purpose of her speech is likely:

Apsychologist has developed a series of personality inventories and wants to determine if they are valid. one of the scales measures perfectionism, so he asks a colleague for advice on how to establish the validity of this scale. the colleague tells him that if he were to find a sample of people with personality disorder, these people would obtain high scores on a scale that measures perfectionism.

Erika is a human resource manager at bluetel inc., a software company. she receives a call from an hr manager at another software company asking about marshall, a software engineer who used to work at bluetel and has applied for a job at the caller's company. erika checks the company's records and sees that a coworker had accused marshall of racial discrimination, but an investigation did not turn up any evidence to support the charge. marshall left the company two months later, saying he was no longer comfortable there. erika is concerned about sharing the details of this situation with the caller. if telling the information to the caller leads to the other company not hiring marshall, what potentially unlawful behavior could marshall accuse bluetel of engaging in?