Consider the following: 1. Electromagnetic radiation 2. Geothermal energy 3. Gravitational force 4. Plate movements 5. Rotation of the earth 6. Revolution of the earth. Which of the above are responsible for bringing dynamic changes on the surface of the earth?
Which of the following phenomena might have influenced the evolution of organisms? 1. Continental drift 2. Glacial cycles
Which one of the following is the best example of repeated falls in sea level, giving rise to present-day extensive marshland?
Consider the following statements: 1. In a seismograph, P waves are recorded earlier than S waves. 2. In P waves, the individual particles vibrate to and fro in the direction of wave propagation whereas in S waves, the particles vibrate up and down at right angles to the direction of wave propagation. Which of the statements given above is/are correct?
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