Last two questions are hidden word, and the definition, i really need help

The hypothesis of continental drift states that earth's continents, which are located on tectonic plates, move relative to each other. which of the following is true of the movement of the tectonic plates? a. tectonic plates only move once every million years. b. they move at a rate of approximately 5 centimeters per year. c. tectonic plates never move, only the continents located on them do. d. their movements are very rapid and occur at random times.

Aboy with an extra x chromosome probably has which of the following syndromes?

Darwin’s hypothesis about how life changes over time is now called?