In general, intelligence is the ability to effectively adapt to the environment, either by changing oneself, changing the environment, or finding a new environment. However, there is no commonly accepted definition of what intelligence is exactly. Some believe that it is our ability to learn, others believe that it is our ability to adapt to the environment, and still others emphasize it as being our ability to cope with the environment and situations we are presented with.
In any case, intelligence is based upon cognitive processes, including perception, memory, reasoning, and problem-solving. Intelligence is not a cognitive or mental process, but instead the combination of these processes that we use to adapt to our environment.
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