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Forest
Sequencing
College
Science
HYDRUS Quiz #2
Afrah Al shuka
3
Added Question (10/ 20)
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# 1

Multiple Choice

What is a soil water retention curve?

  • A graph showing the relationship between soil moisture content and soil temperature
  • A graph showing the relationship between soil moisture content and soil water potential
  • A graph showing the relationship between soil moisture content and soil pH
  • A graph showing the relationship between soil moisture content and soil texture

# 2

Multiple Choice

Which factor does NOT affect soil porosity?

  • Soil texture
  • Soil structure
  • Soil color
  • Organic matter content

# 3

Multiple Choice

What is the primary role of soil porosity?

  • To determine soil color
  • To affect the soil's nutrient content
  • To determine the soil's ability to hold water and air
  • To measure soil temperature

# 4

Multiple Choice

How does soil texture influence water retention?

  • Sandy soils retain more water due to larger particles
  • Clay soils retain more water due to smaller particles
  • Silts retain less water than sands
  • Texture does not influence water retention

# 5

Multiple Choice

What happens to soil porosity as compaction increases?

  • Porosity increases
  • Porosity decreases
  • Porosity remains the same
  • Porosity becomes unpredictable

# 6

Multiple Choice

Why is the soil water retention curve important for agriculture?

  • It helps predict soil color changes
  • It assists in understanding water availability for crops
  • It identifies soil erosion patterns
  • It measures soil temperature variations

# 7

Multiple Choice

Which soil type typically has the highest porosity?

  • Sandy soil
  • Clay soil
  • Loamy soil
  • Gravel soil

# 8

Multiple Choice

What is the effect of organic matter on soil porosity?

  • It decreases soil porosity
  • It has no effect on soil porosity
  • It increases soil porosity
  • It makes soil porosity unpredictable

# 9

Multiple Choice

Which instrument is typically used to measure the soil water retention curve?

  • Thermometer
  • Tensiometer
  • Barometer
  • Hygrometer

# 10

Multiple Choice

What is the relationship between soil porosity and permeability?

  • Higher porosity always means higher permeability
  • Higher porosity never affects permeability
  • Higher porosity can lead to higher permeability, but other factors play a role
  • Porosity and permeability are unrelated
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