Answer:
75%
Explanation:
This result is taken from a study led by Robert Plomin using twins as the main test subjects. This indicates that it is true that intelligence can be influenced by environment and genetical factors , but genetical factors since play a larger part.
Highly intelligence people tend to have the abiltiy to process new information at a much faster rate compared to normal people and have a naturally larger brain capacity to store that information longer. This basic ability cannot be replicated with training or nutrition.
