<span>the state of being scarce or in short supply; shortage.</span>
Answer:
B. a fixed-ratio schedule
Explanation:
Fixed-ratio schedule: In psychology, the term "fixed-ratio schedule" is considered as one of the reinforcement schedules in operant conditioning in which a specific response is being reinforced once particular responses are being completed.
The different reinforcement schedules was proposed by one of the famous behaviorists and psychologists named B. F. Skinner.
In the question above, the given statement represents the "fixed-ratio schedule".
Answer:
Júpiter, Saturno, Urano, Neptuno,
Explanation:
(espero que sean simplemente los del sistema solar)
It is used to determine the age of an ancient object. The process is called radiocarbon dating. Carbon-14 is a naturally present isotope that is produced when cosmic rays collide with nitrogen and as a result it is oxidized to be become CO2.