Explain the hypothesis of continental drift.

a) Explain the hypothesis of continental drift. (b) Who formulated the hypothesis? 2. Explain why tectonic activities (earthquakes and volcanic eruptions) are concentrated along plate boundaries? 3. Explain the difference between tectonic forces and gradational forces and give at least two examples of each. 4. (a) What is a tsunami? (b) Explain how a tsunami develops? 5. Describe what is meant by karst topography and explain how it is formed. 6. Using your knowledge of the elements of whether and climate, explain why the tropical rainforest climatic region is (a) warm and (b) rainy. 7. Using your knowledge of global atmospheric circulation, explain why most of the arid and semi-arid environments of the world are found between 200N and 400N latitudes and 200S and 400S latitudes. 8. Explain the difference between convectional precipitation, orographic precipitation, and frontal precipitation. 9. (a) Explain relative humidity? (b) The actual amount of water vapor in the atmosphere remaining constant, explain how relative humidity is affected by changes in air temperature. 10. (a) Explain temperature inversion? (b) Explain the effects of temperature inversion in an area?