KAS: Paper-I (F)3. Geophysical Phenomena — Earthquake, Tsunami, Volcanoes, Cyclone, Flood, Landslides

Consider the following statements regarding the earthquakes: I. The intensity of earthquake is measured on Mercalli scale. II. The magnitude of an earthquake is a measure of energy released. III. Earthquake magnitudes are based on direct measurements of the amplitude of seismic waves. IV. In the Richter scale, each whole number demonstrates a hundredfold increase in the amount of energy released. Which of these statements are correct?

Volcanic eruptions do not occur in the

The characteristics of a cyclone include: I. Air convergence II. Upliftment of air III. Centrifugal air flow IV. Circular air motion

Consider the following statements: "Vulcanicity" refers to I. all those processes in which molten rock material or magma rises into the crust. II. the greater bulk of the volcanic rocks of the earth's surface were erupted from volcanoes III. the process of solidification of rock into crystalline or semi crystalline form from molten rock material after being poured out on the surface. Which of the statements given above are correct?