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
Consider the following statements: 1. The Earth's magnetic field has reversed every few hundred thousand years. 2. When the Earth was created more than 4000 million years ago, there was 54% oxygen and no carbon dioxide. 3. When living organisms originated, they modified the early atmosphere of the Earth. Which of the statements given above is/are correct?
Which one of the following is the best example of repeated falls in sea level, giving rise to present-day extensive marshland?
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