JAMB Geography questions

318 questions with answers and explanations. Tap an option to check yourself.

1. Question 161· Relief, contours and gradient· JAMB

   A plateau appears on a contour map as

   • Acontours close together round the edge enclosing a wide area with few contours
   • Bevenly spaced contours
   • Crings that close to a point
   • DV-shaped contours

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   Explanation and discussion

2. Question 162· Relief, contours and gradient· JAMB

   A watershed is

   • Aa ridge separating two drainage basins
   • Ba water tank
   • Ca river mouth
   • Da flood plain

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   Explanation and discussion

3. Question 163· Relief, contours and gradient· JAMB

   The vertical interval on a contour map is the

   • Ascale of the map
   • Bhorizontal distance between contours
   • Cheight of the highest point
   • Ddifference in height between two successive contours

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   Explanation and discussion

4. Question 164· Relief, contours and gradient· JAMB

   Contours spaced widely near the top of a slope and closely near the bottom show a

   • Aterraced slope
   • Bconcave slope
   • Cuniform slope
   • Dconvex slope

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   Explanation and discussion

5. Question 165· Relief, contours and gradient· JAMB

   An escarpment on a map has

   • Aclosely spaced contours on one side and widely spaced on the other
   • Bevenly spaced contours
   • Cno contours
   • Dcircular contours

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6. Question 166· Relief, contours and gradient· JAMB

   Two points 1.5 km apart differ in height by 150 m. What is the gradient between them?

   • A1 in 10
   • B1 in 100
   • C1 in 15
   • D1 in 150

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7. Question 167· Relief, contours and gradient· JAMB

   Spot heights on a topographical map are shown as

   • Ashaded areas of highland
   • Blines joining places of equal height
   • Cdots with figures giving the height of particular points
   • Dtriangles marking survey stations only

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8. Question 168· Relief, contours and gradient· JAMB

   A spur on a contour map appears as

   • AV-shaped contours pointing uphill
   • BV-shaped contours pointing downhill
   • Cclosed rings
   • Dstraight lines

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9. Question 169· Relief, contours and gradient· JAMB

   Contours drawn very close together show a

   • Agentle slope
   • Bsteep slope
   • Cflat plain
   • Dplateau surface

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10. Question 170· Relief, contours and gradient· JAMB

    A convex slope has contours that are

    • Aevenly spaced
    • Bcloser together at the bottom than at the top
    • Ccloser together at the top
    • Dabsent

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11. Question 171· Rocks and minerals· JAMB

    A vertical sheet of igneous rock that cuts across the layers of older rocks is

    • Aa sill
    • Ba dyke
    • Ca laccolith
    • Da batholith

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    Explanation and discussion

12. Question 172· Rocks and minerals· JAMB

    Limestone is quarried in Nigeria at

    • ALagos lagoon
    • BJos and Bauchi only
    • CEnugu only
    • DEwekoro and Obajana

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13. Question 173· Rocks and minerals· JAMB

    Slate is formed by the metamorphism of

    • Agranite
    • Blimestone
    • Csandstone
    • Dshale

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14. Question 174· Rocks and minerals· JAMB

    A batholith is

    • Aa very large mass of intrusive igneous rock formed deep underground
    • Ba small lava flow
    • Ca cave
    • Da sand dune

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15. Question 175· Rocks and minerals· JAMB

    Gneiss is a metamorphic rock formed mainly from

    • Alimestone
    • Bgranite
    • Cclay
    • Dcoal

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16. Question 176· Rocks and minerals· JAMB

    Granite is an example of

    • Asedimentary rock
    • Borganic rock
    • Cmetamorphic rock
    • Digneous rock

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17. Question 177· Rocks and minerals· JAMB

    Basalt is an igneous rock formed when

    • Alava cools quickly on the earth's surface
    • Bmagma cools slowly deep underground
    • Csediments are compressed
    • Dlimestone is heated

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18. Question 178· Rocks and minerals· JAMB

    Rocks are useful to man as sources of

    • Adaylight
    • Brainfall
    • Cwind
    • Dbuilding materials and minerals

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19. Question 179· Rocks and minerals· JAMB

    A horizontal sheet of igneous rock intruded between layers of sedimentary rock is

    • Aa volcanic plug
    • Ba dyke
    • Ca sill
    • Da lava plateau

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20. Question 180· Rocks and minerals· JAMB

    Marble is formed by the metamorphism of

    • Asandstone
    • Bgranite
    • Climestone
    • Dshale

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    Explanation and discussion