Question

They had to understand the apparent _______ (MOVE) of the stars, waves and even ocean currents.

Answer 1

They had to understand the apparent motion of the stars, waves and even ocean currents.

Учи английский вместе с Курчановым)

Answer 2

Movement (движение)

Им надо было понять явное движение звёзд, волн и даже морские течения