Signs in the sky answer key

Based on paragraph 1 of "Signs in the Sky," what does observing mean?
1.guessing about
2.paying attention to-Correct
3.talking about
4.taking care of

Read these two sentences from paragraph 3 of "Signs in the Sky."

"A red sunset in the west usually means that a high pressure system, or dry weather, is coming. Sunrises, on the other hand, can be red for a variety of reasons."

How are these two sentences connected?-Correct
The sentences contrast red sunsets and red sunrises.
The sentences compare dry weather to high pressure systems.
The sentences explain steps in a process.
The sentences explain the reasons for sunsets and sunrises.

In paragraph 5 of "Signs in the Sky," what causes cumulonimbus clouds to look dark like rocks?
light rain
strong winds
heavy water/Correct
big storms

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