Quiz

Soil components — quick check

2 questions · Pass at 70% · +30 pts on first pass

Guest mode: your answers aren’t saved and no points are awarded.

Question 1 · Multiple choice — select all that apply

Which of the following answers describe soil (select all that apply)?

Crushed rock with water only. A dynamic system made of solids, liquids, gases, and living organisms. A static material that supports plants. A habitat for many organisms.

Question 2 · Single choice — select one

Now that you know about the four main components of soil, look at the soil profile together with the four example compositions shown in the glasses. Which option best represents the overall composition of soil? Note: Not all components are equally visible in a soil profile.

90 % minerals, 5 % organic matter, 2.5 % water, 2.5 % air 70 % minerals, 10 % organic matter, 10 % water, 10 % air 45 % minerals, 5 % organic matter, 25 % water, 25 % air 20 % minerals, 10 % organic matter, 35 % water, 35 % air