Increasing carbon dioxide will cause sea ice to reduce in spatial coverage. In turn,
the reduced sea ice extent is a
(a) Positive feedback on surface temperature because it has a greater
albedo than ocean
(b) Positive feedback on surface temperature because it has a lower albedo than
ocean
(c) Positive feedback on surface temperature because sea ice has lower heat ca-
pacity than ocean
(d) Both B and C are true
the reduced sea ice extent is a
(a) Positive feedback on surface temperature because it has a greater
albedo than ocean
(b) Positive feedback on surface temperature because it has a lower albedo than
ocean
(c) Positive feedback on surface temperature because sea ice has lower heat ca-
pacity than ocean
(d) Both B and C are true