Answer:
From what I remember, 4. Sorry if this is wrong!
Explanation:
Observation is a very important part of science. It lets us see the results of an experiment, even if they are not the results we expect. It lets us see unexpected things around us that might stimulate our curiosity, leading to new experiments. Even more important than observation is accurate observation. Often, our eyes and our brains play tricks on us, letting us see what we expect to see, instead of what is actually there.
The haystack in "Zlateh the Goat" symbolizes safety.
Embankment refers to a long artificial bank built to retain water, or to support a road.
