Who are the espn sunday night baseball announcers?

Boonie Bernstien: (field reporter, 2006)

Terry Francona: (analyst, 2012)

Peter Gammons(field analyst, 2006–2008)

Orel Hershiser: (analyst, 2010–2013)

John Kruk(analyst, 2013–2015)

Álvaro Martin(field reporter, 2000–2001)

Jessica Mendoza: (analyst, 2015–present)

Jon Miller: (play-by-play, 1990–2010)

Joe Morgan: (analyst, 1990–2010)

Wendi Nix: (field reporter, 2011)

Buster Olney: (field reporter, 2011–present)

Steve Phillips: (analyst, 2009)

Sam Ryan: (field reporter, 2004–2006)

Curt Schilling: (analyst, 2014–2015)

Dan Shulman: (play-by-play, 2011–present)

Bobby Valentine: (analyst, 2011)

what are the answer choices?

permafrost layer, it exists beneath a layer of soil, rock or sediment.