FTC asked for information about deals that were done between 1 January 2010 and 31 December 2019.
FTC might ask a court to bar Facebook from enforcing policies regarding how its apps work with potential rivals.
The deal will give Google the capability to take on Apple and Samsung in the market for fitness trackers.
Facebook CEO Zuckerberg reportedly says that US President Trump did not discourage him to ban political ads
Trump has openly castigated Facebook repeatedly, accusing it of being biased in favour of Democrats.
California state attorney general's office went to court to compel Facebook to comply with requests for information in its investigation.
Despite its huge collection of data on search queries and clicks, Google said it could not provide much of the data sought by the committee.
This was revealed after the emergence of nearly 7,000 pages of Facebook's emails and executive documents.
Facebook has come under fire over its decision not to fact-check ads run by politicians on the platform.
Facebook has faced a barrage of criticism over privacy lapses, election-related activity and more.