Match the statements in COLUMN A with the options in COLUMN B on drainage basins. Write only Y or Z next to the question numbers (2.1.1 to 2.1.7) in the ANSWER BOOK, e.g. 2.1.8 Y.

Question 1

Answer · 2026-03-19T08:44:36.697Z

Here are the matches for each statement: 1.1. Area drained by a river and its tributaries The area drained by a river and its tributaries is known as a drainage basin. Answer: Z 1.2. Promotes a rapid rise in the water table A gentle gradient allows water to flow more slowly over the surface, increasing the time for infiltration into the ground, which can lead to a rise in the water table. A steep gradient promotes rapid surface runoff, reducing infiltration. Answer: Y 1.3. The upper level of ground water The upper level of groundwater is defined as the water table. Answer: Y 1.4. Seepage of water into the ground The process of water seeping into the ground is called infiltration. Answer: Y 1.5. Causes reduction of surface run-off Dense vegetation intercepts rainfall, slows down surface flow, and promotes infiltration, thereby reducing surface run-off. Impermeable rocks prevent infiltration, increasing run-off. Answer: Z 1.6. The confluence is located at Y/Z A confluence is the point where two or more streams or rivers meet. In the diagram, point 2 (Z) shows the meeting point of two streams. Answer: Z 1.7. High-lying area separating two tributaries in the same river system The key indicates wavy lines as "High-lying area" and arrows as "Streams". Diagram Z shows a high-lying area separating two streams that are clearly part of the same larger system, eventually flowing in the same general direction. Diagram Y shows a high-lying area separating two distinct, possibly independent, drainage patterns. Answer: Z

Question 2

Here are the matches for each statement: 1.1. Area drained by a river and its tributaries The area drained by a river and its tributaries is known as a drainage basin. Answer: Z 1.2. Promotes a rapid rise in the water table A gentle gradient allows water to flow more slowly over the surface, increasing the time for infiltration into the ground, which can lead to a rise in the water table. A steep gradient promotes rapid surface runoff, reducing infiltration. Answer: Y 1.3. The upper level of ground water The upper level of groundwater is defined as the water table. Answer: Y 1.4. Seepage of water into the ground The process of water seeping into the ground is called infiltration. Answer: Y 1.5. Causes reduction of surface run-off Dense vegetation intercepts rainfall, slows down surface flow, and promotes infiltration, thereby reducing surface run-off. Impermeable rocks prevent infiltration, increasing run-off. Answer: Z 1.6. The confluence is located at Y/Z A confluence is the point where two or more streams or rivers meet. In the diagram, point 2 (Z) shows the meeting point of two streams. Answer: Z 1.7. High-lying area separating two tributaries in the same river system The key indicates wavy lines as "High-lying area" and arrows as "Streams". Diagram Z shows a high-lying area separating two streams that are clearly part of the same larger system, eventually flowing in the same general direction. Diagram Y shows a high-lying area separating two distinct, possibly independent, drainage patterns. Answer: Z

Match the statements in COLUMN A with the options in COLUMN B on drainage basins. Write only Y or Z next to the question numbers (2.1.1 to 2.1.7) in the ANSWER BOOK, e.g. 2.1.8 Y.

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