1. The water holding capacity is the highest in
- Sandy soil
- Clayey soil
- Loamy soil
- Mixture of sand and loam
Answer: Clayey soil
2. Biome with the richest soil?
- Temperate Grassland
- Temperate Deciduous Forest
- Tropical Rainforest
- Temperate Rainforest
Answer: Temperate Grassland
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3. A soil, which has pH ranges from 8.5 to 10 and ESP is greater than 15 and EC less than 4 m mhos/cm, the soil is called
- Saline soil
- Alkaline soil
- Saline alkaline soil
- None of these
Answer: Alkaline soil
4. A well developed soil have
- A-horizon
- B-horizon
- C-horizon
- All of these
Answer: All of these
5. Which one among the following is not a coral reef island?
- Kyushu Island, Japan
- Rainbow Reef, Fiji
- Swaraj Island, India
- More than one of the above
Answer: Kyushu Island, Japan
6. The entire northern plains of India are made of which type of soil?
- Alluvial Soils
- Black Soil
- Laterite Soil
- Arid Soil
Answer: Alluvial Soils
7. Which among the following soil is rich in minerals?
- Alluvial soil
- Black soil
- Laterite Soil
- Arid Soil
Answer: Alluvial soil
7. Which one of the following natural regions is known as 'Land of Big Games'?
- Temperature Grassland
- Tropical Monsoon Region
- Tropical Savanna Region
- More than one of the above
Answer: Tropical Savanna Region
8. Laterite soil is rich in:
- Phosphorus
- Calcium carbonate
- Potassium
- Iron oxide
Answer: Iron oxide
9. Contains lichens, some grass and mosses, small shrubs, and no trees
- Tropical savanna
- Temperate grassland
- Desert
- Tundra
Answer: Tundra
10. A soil profile having two sola, one above the other is known as
- Bisequem profile
- Truncated profile
- Soil monolith
- Soil fabric
Answer: Bisequem profile
11. Alkali soils are generally found in
- Humid climate
- Sub humid region
- Arid and semi arid climate
- Temperate climate
Answer: Arid and semi arid climate
12. The Amazon Basin of Brazil is an example of
- Tropical Monsoon forest
- Tropical Rain forest
- Mediterranean forest
- More than one of the above
Answer: Tropical Rain forest
13. Which one among the following is not a coral reef island?
- Great Barrier Reef, Australia
- Rainbow Reef, Fiji
- Kyushu Island, Japan
- More than one of the above
Answer: Kyushu Island, Japan
14. Size of colloidal clay particle is less than
- 0.0002 m
- 0.02 mm
- 0.002 mm
- None of these
Answer: 0.002 mm
15. Which of the following is an example of anthropogenic biome?
- Fresh water
- Grassland
- Rain forest
- Cropland
Answer: Cropland
16. Which one of the following natural regions is known as 'Land of Big Games'?
- Temperature Grassland
- Tropical Monsoon Region
- Hot Desert Region
- Tropical Savanna Region
Answer: Tropical Savanna Region
17. Which of the following is the LEAST visible form of land erosion?
- Gully erosion
- Landslides
- Sheet erosion
- Ravine formation
Answer: Sheet erosion
18. Relative Humidity is measured by
- Barometer
- Thermometer
- Raingauge
- Hygrometer
Answer: Hygrometer
19. Which of the following biomes is characterized by hardwood trees and they generally shed their leaves in autumn?
- Tundra
- Taiga
- Savanna
- Temperate Forest
Answer: Temperate Forest
20. ________ soil is also known as the ‘Regur Soil’.
- Laterite
- Arid
- Black
- Desert
Answer: Black
21. The percolation rate of water is the least in ........... soil.
- clay
- sandy
- gravel
- loamy
Answer: clay
22. Biome located only in the Northern Hemisphere
- Tropical Savanna
- Taiga
- Tundra
- Cold Desert
Answer: Tundra
23. Soils high in swelling clays which crack widely upon drying resulting in shrinkage, shearing and soil mass movement are characteristics of
- Ultisols
- Entisols
- Podsols
- Vertisols
Answer: Vertisols
24. Tropical Evergreen Forests are also known as ______.
- Tropical Mangrove Forests
- Tropical Rainforests
- Tropical Coniferous Forests
- Tropical Deciduous Forests
Answer: Tropical Rainforests
25. The colour of soil which is formed by Basalt
- Red
- Yellow
- White
- Black
Answer: Black
26. The Puna grassland ecoregion is found in which of the following continents?
- Asia
- Africa
- North America
- South America
Answer: South America
27. The microrelief of soils produced by expansion and contraction with changes in moisture is known as
- Fluvial deposits
- Gilgai
- Mottling
- Heaving
Answer: Gilgai
28. Which group of microorganisms have highest biomass in soil
- Bacteria
- Actinomycetes
- Fungi
- Algae
Answer: Fungi
29. If quartz and feldspar are predominantly observed in sandstone, then it is called
- Conglomerate
- Breccia
- Arkose
- Shale
Answer: Arkose
30. Laterite Soil is poor in lime but rich in ________.
- Iron
- Phosphorous
- Calcium
- None of the above
Answer: Iron
