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5107
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Latest facts first
| # | Question & Answer |
|---|---|
| 2976 |
What is the portion of land drained by a river and its tributaries called?
-
River basin.
|
| 2977 |
What is the area drained by a single river system called?
-
Drainage basin.
|
| 2978 |
Where are Point Bars (or meander bars) found?
-
On the convex side of meanders of large rivers.
|
| 2979 |
What is the composition of natural levee deposits?
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Coarser than deposits spread by flood waters away from the river.
|
| 2980 |
What are the raised banks along a river called?
-
Levees.
|
| 2981 |
What sized materials are carried by relatively slow moving waters in gentler channels?
-
Fine sized materials like sand, silt and clay.
|
| 2982 |
What develops as a major landform of river deposition?
-
Floodplain.
|
| 2983 |
What forms when a meander loop cuts off from the river?
-
Ox-Bow Lake.
|
| 2984 |
What are very deep and wide meanders cut in hard rocks called?
-
Incised or Entrenched Meanders.
|
| 2985 |
What occurs along the concave bank of large river meanders?
-
Undercutting.
|
| 2986 |
What is deposited along the convex bank of large river meanders?
-
Sediment.
|
| 2987 |
What deflecting force influences water flow in meander formation?
-
Coriolis Force.
|
| 2988 |
Where are meandering courses common?
-
Over floodplains and delta plains where stream gradients are very gentle.
|
| 2989 |
When are meanders formed?
-
When a river flows over a low gradient.
|
| 2990 |
What feature is formed when a river enters the plain and twists and turns forming large bends?
-
Meanders.
|
| 2991 |
What causes a waterfall?
-
River tumbling at steep angle over hard rocks or down a steep valley side.
|
| 2992 |
What is the primary use of the mineral Gypsum?
-
Manufacturing Plaster of Paris and Wallboard.
|
| 2993 |
What is the geological structure that can trap oil and natural gas?
-
Anticline or Fault Trap.
|
| 2994 |
What is the term for a mineral with a stable, three-dimensional arrangement of atoms?
-
Crystalline structure.
|
| 2995 |
What mineral is required in the fertilizer industry (NPK)?
-
Potash.
|
| 2996 |
Which type of rock holds almost all the world's oil, gas, and coal deposits?
-
Sedimentary Rocks.
|
| 2997 |
Which type of rock is the principal source of all the world's metal ore deposits?
-
Igneous and Metamorphic Rocks.
|
| 2998 |
What is the chief use of the metal lead?
-
Batteries, shielding from radiation.
|
| 2999 |
Which is the most widely used and valuable non-ferrous metal?
-
Copper.
|
| 3000 |
What is the softest mineral on the Mohs scale of hardness?
-
Talc (1).
|