No segundo parágrafo, o termo while em – GOES satellites are owned and operated by the National Oceanic and Atmospheric Administration (NOAA) while the National Aeronautics and Space Administration (NASA) manages the design, development and launch of the spacecraft. – é corretamente substituído por

In the excerpt of the fourth paragraph – Paramagnetic properties are due to the presence of some unpaired electrons – the expression due to can be replaced, without changing its meaning, for

In the text, the word “current” (l.1) means

The word “actual” (l.24) is synonymous with

In the text,

In the text, the word “detrimental” (l.20) means

Without much change in the original meaning of the text, the word “gap” (l.1) could be correctly replaced by

The word “Nevertheless” (l.13) expresses the idea of

The word “mandatory” (l.10) is the same as