Here are the answers to Section B: 20. The period in the historical development of geography where geographic knowledge saw strong growth in Europe is called Answer: Renaissance* 21. What is the differences between mechanical weathering and chemical weathering ...? Explanation: Mechanical weathering (or physical weathering) breaks down rocks into smaller pieces without changing their chemical composition. Chemical weathering* alters the chemical composition of rocks, forming new minerals or dissolving existing ones. 22. The point inside the earth crust where an earthquake starts and strongest is termed ....? Answer: Focus (or Hypocenter*) 23. The processes that act externally and result in the gradual lowering of the surface of the earth are described as Answer: Denudation* 24. The scientific study of the fresh waters of the earth or waters of the earth's land areas is known as Answer: Limnology* 25. State any three landforms associated with water erosion Answer:* V-shaped valleys* Waterfalls* Gorges* 26. State any three (3) tools used in the study of geography. Answer:* Maps* GIS (Geographic Information Systems)* GPS (Global Positioning System)* 27. Distinguish between an aftershock and a foreshock as related to earthquake. Explanation: A foreshock is a smaller earthquake that precedes a larger main earthquake. An aftershock* is a smaller earthquake that follows a larger main earthquake. 28. Give three (3) examples of intrusive volcanic landforms. Answer:* Batholiths* Sills* Dikes* 29. Differentiate between weathering and mass wasting. Explanation: Weathering is the in-situ breakdown of rocks and minerals at or near the Earth's surface. Mass wasting* is the downslope movement of rock, soil, and sediment under the direct influence of gravity. 30. The rate at which temperature decreases with altitude in the troposphere is referred to as..? Answer: Lapse rate (or Environmental lapse rate*)