6 Ways: No Laughing Matter

The passage No Laughing Matter is mostly about

• Mountain areas can be very dangerous.

• Sound vibrations can trigger an avalanche.

• Avalanches, which are huge piles of tumbling snow, are very dangerous.

• Snow-covered mountains in Colorado.

This passage is concerned with ​ (a)  

• avalanches.
• bad snowstorms
• mountains.
• bad snowstorms.
• laughter.

Avalanches can be started​ (a)  

• loud sounds.
• the wind.
• falling snow.
• friction between snowflakes.

After reading the text, we can conclude that avalanches

• are common everywhere.

• are not very common.

• have killed people.

• are a thing of the past.

The author of the selection compares an avalanche to ​ (a)  

• a falling house of cards.
• a tornado.
• a snowstorm.
• a speeding train.

In paragraph 1 of this passage, the word unstable means