سوال ۲۷ کنکور ارشد مهندسی مکانیک ۱۴۰۰

PART C: Reading Comprehension

PASSAGE 3 — Summary (not a verbatim transcription):

The opening paragraph treats wind as a consequence of solar energy and attributes its formation to three factors operating together. It groups uneven atmospheric heating, surface irregularities, and Earth's rotation as "three concurrent events".

The word "concurrent" in the first paragraph means ----------.