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Geology 1403 Exam 2

Geology 1403 EXAM 2 focuses on weathering processes, illustrating the chemical formation of clay minerals, the role of frost wedging, and soil characteristics in various climates. It assesses understanding of geological...

Questions: 31 | Attempts: 314 | Last updated: Mar 21, 2025

Sample Question 1
Clay minerals formed from gabbro or diorite bedrock illustrate which kind of weathering?

Chemical

Proactive

Syntropical

Mechanical

Sample Question 2
Why is the humus layer typically thicker in a cool, temperate forest soil than in a tropical rainforest soil?

Less humus is produced in the tropical rainforest because the B-horizon is so poorly developed

Less humus is produced in the cool, temperate forest but the rate of decay and oxidation is slower than in a tropical rainforest.

More humus is produced in the tropical rainforest but it is quickly washed away by the heavy rains

In a tropical rainforest, the forest-floor litter is offen burned during the dry season

Sample Question 3
Frost wedging is the majojr weathering process contributing to the formation of which regolith material?

Tropical literates

Talus slopes

C soil horizons

Mature pedalfers