Quiz

Quiz: Peat and peat profiles

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

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Question 1 · Single choice — select one

Which two factors are most important in the formation of peat?

Acidity and nutrient availability Moisture conditions and temperature Nutrient availability and moisture conditions Temperature and acidity

Question 2 · Single choice — select one

Which statement is FALSE?

Bogs receive water mainly from rainfall. Reed peat is commonly associated with nutrient-rich conditions. Sphagnum peat indicates strong river influence. Peat profiles preserve evidence of environmental change.

Question 3 · Single choice — select one

Match the peat type to the most likely environment in which it formed.

Peat type	Environment
A. Reed peat	1. Rainwater-fed bog
B. Sphagnum peat	2. Nutrient-rich shallow water
C. Woody peat	3. Alder swamp forest
D. Sedge peat	4. Intermediate nutrient conditions

A → 2, B → 1, C → 3, D → 4 A → 1, B → 2, C → 4, D → 3 A → 3, B → 4, C → 1, D → 2 A → 4, B → 3, C → 2, D → 1

Question 4 · Single choice — select one

What does this peat profile tell us about how the environment changed over time? A peat profile contains: Bottom: Reed peat
Middle: Sedge peat
Top: Sphagnum peat
Choose the most likely explanation for how this profile developed:

Nutrient availability increased over time. Groundwater influence decreased over time. River flooding became more frequent. The climate became warmer.