List two advantages of the aneroid barometer over the mercury barometer
What will be an ideal response?
The aneroid barometer is designed for home use with a dial face that indicates the relationship of air pressure to "weather" readings of "fair" or "rainy" and so on. It can also be easily connected to a recording mechanism, resulting in a barograph that provides a continuous record of pressure changes. This instrument is also a useful indicator of altitude for aircraft, mountain climbers, and mapmakers.
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Cyclone
?
The following questions refer to the above illustration of a middle-latitude cyclone. The dashed lines show the positions of the fronts six hours ago.
At which location represented by the four positions on the map would you expect to hear the following 12-hour forecast: "Cloudy and cold this morning with snow this afternoon and tonight"?
A. position 1 B. position 2 C. position 3 D. position 4
How does a seismograph work?
A) Sensitive triggers record digital signals and change them into binary so computers can analyze the data. B) Fluid-filled sensors register shaking signals and feed them to recorders. C) Rotating drums are marked by pens when Earth shakes. D) Infrared movement sensors are wired to an inverter that changes the signals to binary so computers can analyze the data.
Coal, oil, and natural gas make up ________ of the energy consumed worldwide.
A. 85% B. 75% C. 90% D. 80%
Felt earthquakes usually last for ________
A) less than 1 second (they are instantaneous) B) 10 to 60 seconds C) 1 to 10 seconds D) 1 to 10 minutes