Match the following warning sign with its appropriate monitoring instrument.

1.volcano is emitting gases. tiltmeter
2.small tremors are occurring. cospec
3.the ground by a volcano is moving upward. seismograph

1. Volcano is emitting gases> COSPEC.

2. Small tremors are occurring > Seismograph.

3. The ground by a volcano is moving upward> Tiltmeter.

brave new world, aldous huxley (1932)

answerpeople organize large projects such as levee-building;