The Critical Period Hypothesis (CPH) states that the first few years of life constitute the time during which language develops readily and after which (sometime between age 5 and puberty<span>) language acquisition is much more difficult and ultimately less successful.</span>
2,3,4, are right 1 is incorrect as far as I can tell
Answer:
Seismology: The branch of science studies of earthquakes and the movement of waves through the earth.
