Responding to stimuli that are similar-but not identical-to a conditioned stimulus is called
a. spontaneous recovery
b. respondent reinforcement
c. stimulus discrimination
d. stimulus generalization

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

hope this : -)

tony (lordcaos066)

c.

explanation: