3. 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.
50 miles out is as far as is possible to see through air.
as we traveled away from San Francisco the bridge was the last thing we saw because of large
its size.
because of the water vapor in the air everything disappeared in the haze. The bridge was the
largest structure so we saw it last.