GS One‑Liners
high‑yield facts · smart revision
5107
facts
5107
results
Latest facts first
| # | Question & Answer |
|---|---|
| 2551 |
How is basic soil treated?
-
Adding organic matter to release acids
|
| 2552 |
How is acidic soil treated?
-
By adding bases like quick lime or slaked lime
|
| 2553 |
What is Laterisation?
-
De-silication causing over-concentration of iron and aluminum oxides in high rainfall areas
|
| 2554 |
What is Loamy Soil?
-
Balanced soil with ~40% sand, 40% silt, 20% clay
|
| 2555 |
In which regions is soil alkalinity common?
-
Dry regions
|
| 2556 |
In which regions is soil acidity common?
-
Humid regions
|
| 2557 |
How does acid groundwater affect soil?
-
Removes soluble bases
|
| 2558 |
What is Leaching?
-
Removal of soluble materials from surface soil to lower levels by water
|
| 2559 |
Why is topsoil dark?
-
Rich in humus and minerals
|
| 2560 |
What is the topmost soil layer called?
-
Topsoil / A-horizon
|
| 2561 |
What is the vertical section showing horizontal soil layers?
-
Soil Profile
|
| 2562 |
What is the degree of coarseness or fineness of soil called?
-
Soil Texture
|
| 2563 |
What are the components of soil?
-
Minerals, humus, water, air
|
| 2564 |
What factors affect soil formation?
-
Relief, parent material, climate, vegetation, life-forms, time
|
| 2565 |
What is soil?
-
Mixture of rock debris and organic materials on the earth’s surface
|
| 2566 |
What is bauxite?
-
Residual mineral formed after decomposition of rocks
|
| 2567 |
What minerals occur in placer deposits?
-
Gold, silver, tin, platinum
|
| 2568 |
Where do minerals occur in igneous/metamorphic rocks?
-
In veins and lodes
|
| 2569 |
What are fossil fuels?
-
Coal, petroleum (organic minerals)
|
| 2570 |
What are major mineral types?
-
Metallic, non-metallic
|
| 2571 |
What are naturally occurring substances with definite chemical composition?
-
Minerals
|
| 2572 |
Which rocks dominate the Deccan Trap?
-
Igneous rocks
|
| 2573 |
What forms when both join?
-
A column
|
| 2574 |
What is a stalagmite?
-
Deposit rising from cave floors
|
| 2575 |
What is a stalactite?
-
Mineral deposit hanging from cave ceilings
|