cryovolcanism - 2025 ACF Fall

Question

In September, Oza et al. claimed to have found spectroscopic evidence of this process occurring on an as-yet undiscovered exomoon of WASP-39 b. For 10 points each:

[10h] Tidal heating drives what phenomenon that can eject volatile gases and liquid water from the interior of a planet or moon?

ANSWER: cryovolcanism [or cryovolcanic activity; prompt on volcanism or volcanic activity]

[10e] This planet’s moon Enceladus is one of two solar system bodies that are known to be cryovolcanically active. Cryovolcanism may be the origin of a methane haze on Titan, another moon of this second-largest gas giant.

ANSWER: Saturn

[10m] Jupiter’s moon Io is the most volcanically active solar system body because orbital resonance with the other Galilean moons excites its orbit’s value of this quantity. This quantity ranges from 0 to 1 and is about 0.017 for the Earth’s orbit.

ANSWER: eccentricity [prompt on epsilon or e]

<Editors, Other Science>

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Summary


Northern California	Main	Y	4	30.00	100%	100%	100%
Southern California	Main	Y	7	21.43	100%	100%	14%
Eastern Canada (1)	Main	Y	4	20.00	100%	75%	25%
Eastern Canada (2)	Main	Y	9	16.67	100%	56%	11%
Florida	Main	Y	4	17.50	100%	75%	0%
Great Lakes	Main	Y	10	22.00	100%	90%	30%
Lower Mid-Atlantic	Main	Y	9	16.67	100%	67%	0%
Upper Mid-Atlantic	Main	Y	9	18.89	100%	78%	11%
Midwest	Main	Y	9	15.56	100%	56%	0%
North	Main	Y	4	15.00	75%	75%	0%
Northeast	Main	Y	12	16.67	100%	67%	0%
Pacific	Main	Y	8	16.25	100%	63%	0%
South Central	Main	Y	6	23.33	100%	100%	33%
Southeast	Main	Y	12	15.83	83%	67%	8%
Upstate NY	Main	Y	5	16.00	100%	60%	0%

Data


Berkeley Skeleton King	Berkeley Boss Bandit	10	10	10	30
Berkeley Little Prince	Berkeley Mighty Miner	10	10	10	30
Stanford A	UCSC	10	10	10	30
Berkeley Archer Queen	Stanford B	10	10	10	30
Claremont A	UCLA C	0	10	10	20
UCLA A	UC Irvine	0	10	10	20
UCLA B	UCSD A	10	10	10	30
UCLA D	Claremont C	0	10	10	20
UCLA F	Claremont B	0	10	10	20
UCSD B	USC B	0	10	10	20
USC A	UC Santa Barbara	0	10	10	20
McGill A	Ottawa A	0	10	10	20
McGill C	Ottawa C	0	10	10	20
McGill B	Ottawa B	10	10	10	30
Carleton B	Ottawa D	0	10	0	10
Toronto E	McMaster A	0	10	10	20
Toronto A	McMaster C	0	10	10	20
Toronto C	Brock A	10	10	10	30
Toronto G	Queen's A	0	10	0	10
Guelph A	Toronto H	0	10	0	10
McMaster B	Toronto I	0	10	10	20
Toronto B	Waterloo A	0	10	0	10
Toronto D	Waterloo B	0	10	10	20
Toronto F	Waterloo C	0	10	0	10
Florida A	ERAU Daytona A	0	10	10	20
Florida B	Florida State A	0	10	10	20
South Florida A	Florida Tech A	0	10	0	10
UCF A	Florida Tech B	0	10	10	20
Louisville B	Ohio State C	10	10	10	30
Louisville D	WVU B	0	10	10	20
Michigan A	CWRU B	0	10	10	20
Michigan B	Louisville A	0	10	10	20
Ohio State B	Michigan C	0	10	10	20
Louisville C	Michigan State C	10	10	10	30
Michigan State A	Ohio State A	10	10	10	30
Ohio State D	Michigan D	0	10	10	20
CWRU C	Pittsburgh	0	10	10	20
WVU A	Michigan State D	0	10	0	10
Duke A	Liberty A	0	10	10	20
Virginia A	Liberty B	0	10	10	20
William & Mary B	Liberty C	0	10	0	10
NCSU A	UNC D	0	10	10	20
NCSU B	Tusculum A	0	10	0	10
UNC A	UNC C	0	10	10	20
George Mason A	Johns Hopkins	10	10	10	30
Rutgers B	Lehigh B	0	10	10	20
Columbia B	Maryland C	0	10	10	20
NYU A	Maryland A	0	10	10	20
Rutgers A	Penn	0	10	10	20
George Mason B	Princeton	0	10	0	10
Rutgers C	George Mason C	0	10	0	10
Columbia A	Rutgers D	0	10	10	20
Vassar B	Vassar A	0	10	10	20
William & Mary A	JMU B	0	10	10	20
UNC B	William & Mary C	0	10	0	10
VCU A	JMU A	0	10	10	20
Purdue B	Purdue D	0	10	10	20
William Woods University A	WashU Grolars	0	10	10	20
Iowa State	Macalester	0	0	10	10
St. Thomas	Michigan Tech	0	10	10	20
Wisconsin A	Minnesota	0	10	10	20
Wisconsin C	Wisconsin B	0	10	0	10
Chicago B	Chicago A	0	10	10	20
Illinois Blue	Iowa B	0	10	10	20
Rose-Hulman A	Illinois Canada	0	10	0	10
Illinois Champaign	Indiana A	0	10	0	10
Purdue A	Illinois Orange	0	10	10	20
Illinois Urbana	Indiana B	0	10	0	10
Iowa A	WashU Grizzlers	0	10	0	10
Amherst A	Boston College B	0	10	10	20
Harvard	Boston College A	0	10	0	10
Brown A	Boston University A	0	10	10	20
Dartmouth A	Brown B	0	10	0	10
Williams B	Dartmouth C	0	10	0	10
MIT A	Boston University B	0	10	10	20
Tufts B	Southern Connecticut State University A	0	10	10	20
Brandeis Bach	Tufts C	0	10	10	20
UConn A	Brandeis Beethoven	0	10	10	20
MIT B	Vermont A	0	10	10	20
Vermont B	Amherst B	0	10	10	20
Williams C	Dartmouth B	0	10	0	10
Arizona State B	Alberta A	0	10	10	20
Washington Pink	Arizona State A	0	10	10	20
British Columbia C	Boise State	0	10	10	20
British Columbia A	British Columbia B	0	10	0	10
Washington Atlantic	Washington Chinook	0	10	0	10
Washington Steelhead	Washington Coho	0	10	10	20
Washington Masu	Washington Chum	0	10	0	10
Alberta B	Washington State	0	10	10	20
Nebraska C	Kansas State A	0	10	10	20
Nebraska A	Central Oklahoma A	10	10	10	30
Central Oklahoma B	Nebraska B	10	10	10	30
Oklahoma	Harding	0	10	10	20
Tulsa A	Kansas State B	0	10	10	20
Rose State	Tulsa B	0	10	10	20
Tennessee B	Alabama A	0	10	0	10
Auburn B	Vanderbilt B	0	10	10	20
Georgia Tech B	Auburn C	0	10	10	20
Clemson B	Chipola College	0	0	10	10
Georgia A	Clemson C	0	10	0	10
Emory A	Mississippi State A	0	10	10	20
Vanderbilt A	Georgia Tech C	0	10	10	20
Auburn A	Georgia Tech D	0	10	0	10
Montevallo	Sewanne	0	0	0	0
South Carolina A	Georgia Tech E	0	10	10	20
Tennessee Tech	Georgia Tech F	0	10	10	20
Clemson A	Vanderbilt C	10	10	10	30
ESF	Binghamton A	0	10	0	10
Binghamton B	Binghamton C	0	10	10	20
Cornell A	Rochester	0	10	10	20
Cornell B	RIT A	0	10	10	20
Cornell C	RIT B	0	10	0	10