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Thursday, November 26, 2020

In the text below some words are missing. Select appropriate words to fill the gaps.

There are two main branches of the science of astronomy: observational and theoretical. Observational astronomy, as the name suggests, is concerned with (1) ………………. the skies and then analyzing the observations, using the (2) ……………….. of physics. Theoretical astronomy (3) …………………… more on developing computer or analytical models to describe astronomical (4) ………………… The two fields complement each other, with observational astronomers attempting to confirm theoretical results, and theoreticians aiming to (5) ………………….. what has been observed.

(1) explain (2) principles (3) observing (4) angles (5) ways (6) focuses (7) phenomena (8) confirming

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