Title: Unit 1 Quiz
Course: HRT 135 Soils and Fertilizers > Section: HRT 135 Soils and Fertilizers

Q: Soil is a very important part of our ecosystem.
- True
- False
A: True

Q: Soils provide plants with water and other nutritional requirements.
- True
- False
A: True

Q: Soils contain no air.
- True
- False
A: False

Q: Earth worms and other soil organisms increase the porosity of the soil which enables air movement.
- True
- False
A: True

Q: Both living and dead plants and animals help in the development of organic particles of the soil.
- True
- False
A: True

Q: Humus in the soil is harmful to the plants.
- True
- False
A: False

Q: Humus is the primary source of carbon and nitrogen to the plants.
- True
- False
A: True

Q: The major constituents of soil are air, water, minerals and organic matter.
- True
- False
A: True

Q: Leaching is the process through which the mineral matters are moved to the bottom of the soil.
- True
- False
A: True

Q: Illuviation is an illusion that happens in the soil.
- True
- False
A: False

Q: Ground water does not move into the nearby lakes and rivers.
- True
- False
A: False

Q: On the basis of the size, soil particles can be classified either as sand, silt and clay.
- True
- False
A: True

Q: The pH measure refers to the soil’s ability to retain mineral and inorganic particles.
- True
- False
A: False

Q: Soils with less hydrogen ion particles are acidic.
- True
- False
A: False

Q: A soil with the pH ranging from 6 to 7 may be considered as fertile soil.
- True
- False
A: True

Q: Soil color is the same for all types of soil irrespective of their location.
- True
- False
A: False

Q: Soils have various layers depending on the presence of organic and inorganic particles.
- True
- False
A: True

Q: Climatic conditions play a very important role in the formation f the soil.
- True
- False
A: True

Q: Development of the soil is referred as pedogenesis.
- True
- False
A: True

Q: Weathering is the process through which weather pattern of an area is determined.
- True
- False
A: False