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CTET Natural phenomena — practice questions — page 2

Explore 58 free Natural phenomena questions in CTET Science. Open each question or exercise to read its content, reference answers and available explanation.

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Natural phenomena questions and exercises with answers

Showing questions 31–58 of 58.

Which of these can cause an earthquake?Read the answer and worked solution →Which instrument records seismic waves from distant earthquakes?Read the answer and worked solution →Who developed the first scale for measuring earthquake magnitude, in 1935?Read the answer and worked solution →Each unit rise in magnitude means about how many times more energy?Read the answer and worked solution →Each unit rise in magnitude gives how much larger ground shaking amplitude?Read the answer and worked solution →Magnitude of an earthquake describes what?Read the answer and worked solution →The largest earthquake ever recorded was in Chile in 1960. What was its magnitude?Read the answer and worked solution →Which earthquake caused over 300,000 deaths in China in 1976?Read the answer and worked solution →Which are the three main types of fault?Read the answer and worked solution →Where do normal faults mainly occur?Read the answer and worked solution →In a strike-slip fault, how do the two sides move?Read the answer and worked solution →An earthquake with focal depth under 70 km is classed as what?Read the answer and worked solution →Deep-focus earthquakes occur at depths of about what range?Read the answer and worked solution →Which seismic waves are longitudinal pressure waves?Read the answer and worked solution →Which seismic wave arrives first at a recording station?Read the answer and worked solution →Which waves do most of the damage in an earthquake?Read the answer and worked solution →How do P waves move the material they pass through?Read the answer and worked solution →Seismic waves through solid rock travel at roughly what speed range?Read the answer and worked solution →Which location is a likely site of a tsunami from an earthquake?Read the answer and worked solution →What does seismic retrofitting do?Read the answer and worked solution →What does the word tsunami mean in Japanese?Read the answer and worked solution →Why do scientists discourage the term tidal wave for a tsunami?Read the answer and worked solution →What is the main cause of a tsunami?Read the answer and worked solution →Which Greek historian first argued ocean earthquakes cause tsunamis?Read the answer and worked solution →The 2004 Indian Ocean tsunami killed about how many people?Read the answer and worked solution →The sea suddenly retreating from the shore is a warning of what?Read the answer and worked solution →Where is the Pacific Tsunami Warning System based?Read the answer and worked solution →Which country has the longest recorded history of tsunamis?Read the answer and worked solution →

Worked practice questions

Which of these can cause an earthquake?

  1. Rainfall alone
  2. Moonlight alone
  3. Volcanic activity
  4. Lightning alone
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Correct answer: C. Volcanic activity

1. Earthquakes are caused mostly by rupture of geological faults. 2. Volcanic activity, landslides and mine blasts can also cause them. 3. Rainfall alone, moonlight and lightning alone are not listed causes. _Source: Wikipedia, Earthquake, Terminology_

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Which instrument records seismic waves from distant earthquakes?

  1. Barometer
  2. Hygrometer
  3. Anemometer
  4. Seismometer
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Correct answer: D. Seismometer

1. Seismic waves travel through the Earth's interior. 2. They can be recorded by seismometers at great distances. 3. A barometer, hygrometer and anemometer measure pressure, humidity and wind. _Source: Wikipedia, Earthquake, Measurement and location_

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Who developed the first scale for measuring earthquake magnitude, in 1935?

  1. Charles Richter
  2. Alfred Wegener
  3. Albert Einstein
  4. Charles Darwin
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Correct answer: A. Charles Richter

1. The first magnitude scale was developed in 1935. 2. Its creator was Charles Francis Richter. 3. The others are known for continental drift, mechanics and evolution. _Source: Wikipedia, Earthquake, Intensity and magnitude_

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