SOIL SCIENCE FINAL TEST 1 UPDATED
ACTUAL QUESTIONS AND CORRECT ANSWERS
Question:
1. What soil particles have not settle when the 8 hour reading is taken during the Bouyoucos method?
Answer:
Clay
Question:
2. Prismlike soil structure is found in the
Answer:
B horizon
Question:
3. Micropores are generally _________________ filled when the soil is at field capacity
Answer:
water
Question:
4. A soil with 25 % sand, 40% silt, and 35 % clay would be classified as a:
Answer:
clay loam
Question:
5. Atoms may not want to be happy but they certainly want to be
Answer:
stable
Question:
6. When estimating the soil texture with the feel method a portion of soil is moistened and a soil
ribbon is created. The soil texture is estimated by considering:
Answer:
Sand is gritty, silt is smooth, and clay is sticky
Question:
7. If a sand grain were the size of a 146 foot Ferris Wheel clay would be the size of
Answer:
a golf ball
Question:
8. The Bouyoucos method is used to determine the soil
Answer:
texture
Question:
9. As a soil structure increases the bulk density also increases
, Answer:
false
Question:
10. Oxidized iron that turns the B layer an orange, brown, or red color (that indicates the soil drains
well) is known as
Answer:
Ferric
Question:
11. Dirt is (best answer)
Answer:
soil is thrown on the floor of a house
Question:
12. Pick the correct order of importance for cementing agents involved in structure formation in the A
horizon
Answer:
microbial gum>iron oxide>organic matter>clay
Question:
13. If a plant is missing any of the 16 essential nutrients it will die immediately
Answer:
false
Question:
14. The soil structure known as platy or platelike is found in the
Answer:
E horizon
Question:
15. Pick the one that is most likely a result of compaction of an A horizon
Answer:
An increase in micropores and bulk density
Question:
16. Micronutrients have a smaller diameter compared with macronutrients
Answer:
false
Question:
17. Which is not a covalent bond
Answer:
CaMg
Question:
18. Soil gives the plant (best answer)
ACTUAL QUESTIONS AND CORRECT ANSWERS
Question:
1. What soil particles have not settle when the 8 hour reading is taken during the Bouyoucos method?
Answer:
Clay
Question:
2. Prismlike soil structure is found in the
Answer:
B horizon
Question:
3. Micropores are generally _________________ filled when the soil is at field capacity
Answer:
water
Question:
4. A soil with 25 % sand, 40% silt, and 35 % clay would be classified as a:
Answer:
clay loam
Question:
5. Atoms may not want to be happy but they certainly want to be
Answer:
stable
Question:
6. When estimating the soil texture with the feel method a portion of soil is moistened and a soil
ribbon is created. The soil texture is estimated by considering:
Answer:
Sand is gritty, silt is smooth, and clay is sticky
Question:
7. If a sand grain were the size of a 146 foot Ferris Wheel clay would be the size of
Answer:
a golf ball
Question:
8. The Bouyoucos method is used to determine the soil
Answer:
texture
Question:
9. As a soil structure increases the bulk density also increases
, Answer:
false
Question:
10. Oxidized iron that turns the B layer an orange, brown, or red color (that indicates the soil drains
well) is known as
Answer:
Ferric
Question:
11. Dirt is (best answer)
Answer:
soil is thrown on the floor of a house
Question:
12. Pick the correct order of importance for cementing agents involved in structure formation in the A
horizon
Answer:
microbial gum>iron oxide>organic matter>clay
Question:
13. If a plant is missing any of the 16 essential nutrients it will die immediately
Answer:
false
Question:
14. The soil structure known as platy or platelike is found in the
Answer:
E horizon
Question:
15. Pick the one that is most likely a result of compaction of an A horizon
Answer:
An increase in micropores and bulk density
Question:
16. Micronutrients have a smaller diameter compared with macronutrients
Answer:
false
Question:
17. Which is not a covalent bond
Answer:
CaMg
Question:
18. Soil gives the plant (best answer)
