Which two oceans are covered with large expanses of sea ice?
a) arctic and indian oceans
b) arctic and antarctic oceans
c) atlantic and pacific oceans
d) atlantic and antarctic oceans

They are all solids.

Answerd. may include all of these are many definitions of bases: the  brønsted-lowry definition of acids and bases says that bases are proton acceptors.the arrhenius definition of acids and bases says that bases increase [oh⁻] in solution (thereby producing oh⁻ ions)the lewis definition of acids and bases says that bases donate electron pairs.therefore, the sensible answer is that a base may include all of the described characteristics.