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We are flying from San Francisco to Australia. Looking back the last thing we observe of San Francisco is the Golden Gate Bridge. Choose the answer that best explains why the bridge was the last bit of San Francisco that we observed.

Since the Earth is a sphere the last thing that was observed was the tallest: the bridge.

because of the water vapor in the air everything disappeared in the haze. The bridge was what we saw last.

50 miles out is as far as is possible to see through air.

1 answer

The best explanation for why the Golden Gate Bridge was the last thing observed is:

Because of the water vapor in the air, everything disappeared in the haze. The bridge was what we saw last.

This explanation accounts for the visibility conditions that can affect how far one can see, as well as the fact that the bridge is a prominent landmark that stands out against the backdrop of the surrounding landscape.