Which one of the following is NOT a sustainable agricultural...

Which one of the following is NOT a sustainable agricultural practice?

Question 1 options:

no-till agriculture

cover crops

crop rotations

plowing fields

none of the above are correct answers

Question 2 (5 points)

____ are one of the major soil orders found in tropical regions of the world. They are very highly weathered soils and often have accumulations of Iron and Aluminum oxide minerals.

Question 2 options:

aridisols

oxisols

mollisols

gelisols

spodosols

Question 4 (5 points)

Tafoni and Aveoli are weathering forms caused by ______.

Question 4 options:

hydration weathering

crystallization weathering

wetting/drying

cavernous weathering

hole weathering

Question 5 (5 points)

Soils are classified by four factors. Which of the following is NOT a soil classification factor?

Question 5 options:

texture

structure

horizonation

color

water content

Question 6 (5 points)

____ are one of the major soil orders and form in volcanic ash or other volcanic ejected materials.

Question 6 options:

aridisols

inceptisols

andisols

gelisols

spodosols

Question 7 (5 points)

_____ is the mechanical and chemical breakdown of earth material (rocks and minerals). ____ is the detachment and transport of weathered earth material (sediment).

Question 7 options:

weathering, erosion

erosion, weathering

detachment, weathering

weathering, abrasion

abrasion, weathering

Question 8 (5 points)

According to the videos you had to watch on Soils, most soils have lost 25-75% of the carbon (organic matter) and thus are losing productivity to produce food.

Question 8 options:

TrueFalse

Question 9 (5 points)

_____ is a physical weathering process caused by erosional processes that transport sediment impacting and grinding against rocks. This can occur as ballistic impact or corrosion.

Question 9 options:

root wedging

abrasion

wetting/drying

cavernous weathering

salt weathering

Question 10 (5 points)

When a mineral is completely dissolved in water we call it ______.

Question 10 options:

dissolution

oxidation

hydration

hydrolysis

abrasion