Exam 2-Geol 2025/2026 Exam Questions
and Verified Answers | Already Graded
A+
Which one of the following is an important mechanical weathering process
for enlarging fractures and extending them deeper into large boulders and
bedrock in temperate and arctic environments? - 🧠 ANSWER ✔✔Frost
Wedging
What portion of an angular, fracture-bounded granitic block shows the
highest rate of weathering? - 🧠 ANSWER ✔✔The Corners
What two factors speed up rates of chemical reaction and weathering in
rocks and soils? - 🧠 ANSWER ✔✔Warm temperatures; abundant moisture
,Which term best describes all the processes that move weathered rock
materials and soils downslope? - 🧠 ANSWER ✔✔Mass wasting
Which of the following best describes sets of fractures in relatively fresh
bedrock, such as granite, that are roughly parallel to the land surface? - 🧠
ANSWER ✔✔Sheeting fractures
From the land surface downward to the unweathered bedrock, which of the
following is the correct order of the different soil horizons in temperate
environments? - 🧠 ANSWER ✔✔O, A, E, B, C, bedrock
Which one of the following statements best describes erosion? - 🧠
ANSWER ✔✔Erosion is the process by which weathered rock and mineral
particles are removed from one area and transported elsewhere.
Which regolith material results from frost wedging? - 🧠 ANSWER ✔✔Talus
slopes
Why is the humus layer typically thicker in a cool, temperate forest soil than
in a tropical rainforest soil? - 🧠 ANSWER ✔✔Less humus is produced in the
cool, temperate forest but the rate of decay and oxidation is slower than in
a tropical rainforest.
, Assume that water filling a crack in a rock undergoes cycles of freezing and
melting. Which of the following statements is true? - 🧠 ANSWER ✔✔Water
expands as it freezes, causing the crack walls to be pushed apart.
Which of the following best describes the process of mineral subtraction or
eluviation? - 🧠 ANSWER ✔✔Mineral subtraction or eluviation is the removal
of very fine-sized silt and clay particles from the A and E soil horizons.
Which one of the following statements concerning soil erosion is not true? -
🧠 ANSWER ✔✔Sheet erosion, rills, and arroyos or gullies develop mainly
during prolonged droughts.
What process creates finely divided red, brown, and yellow minerals in
soils? - 🧠 ANSWER ✔✔Precipitation of iron oxides during the chemical
weathering process
Which of the following materials is/are most susceptible to chemical
weathering by dissolution? - 🧠 ANSWER ✔✔Calcite
Which one of the following statements concerning mechanical weathering
is not true? - 🧠 ANSWER ✔✔Mechanical weathering involves a major
change in the mineral composition of the weathered material.
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
and Verified Answers | Already Graded
A+
Which one of the following is an important mechanical weathering process
for enlarging fractures and extending them deeper into large boulders and
bedrock in temperate and arctic environments? - 🧠 ANSWER ✔✔Frost
Wedging
What portion of an angular, fracture-bounded granitic block shows the
highest rate of weathering? - 🧠 ANSWER ✔✔The Corners
What two factors speed up rates of chemical reaction and weathering in
rocks and soils? - 🧠 ANSWER ✔✔Warm temperatures; abundant moisture
,Which term best describes all the processes that move weathered rock
materials and soils downslope? - 🧠 ANSWER ✔✔Mass wasting
Which of the following best describes sets of fractures in relatively fresh
bedrock, such as granite, that are roughly parallel to the land surface? - 🧠
ANSWER ✔✔Sheeting fractures
From the land surface downward to the unweathered bedrock, which of the
following is the correct order of the different soil horizons in temperate
environments? - 🧠 ANSWER ✔✔O, A, E, B, C, bedrock
Which one of the following statements best describes erosion? - 🧠
ANSWER ✔✔Erosion is the process by which weathered rock and mineral
particles are removed from one area and transported elsewhere.
Which regolith material results from frost wedging? - 🧠 ANSWER ✔✔Talus
slopes
Why is the humus layer typically thicker in a cool, temperate forest soil than
in a tropical rainforest soil? - 🧠 ANSWER ✔✔Less humus is produced in the
cool, temperate forest but the rate of decay and oxidation is slower than in
a tropical rainforest.
, Assume that water filling a crack in a rock undergoes cycles of freezing and
melting. Which of the following statements is true? - 🧠 ANSWER ✔✔Water
expands as it freezes, causing the crack walls to be pushed apart.
Which of the following best describes the process of mineral subtraction or
eluviation? - 🧠 ANSWER ✔✔Mineral subtraction or eluviation is the removal
of very fine-sized silt and clay particles from the A and E soil horizons.
Which one of the following statements concerning soil erosion is not true? -
🧠 ANSWER ✔✔Sheet erosion, rills, and arroyos or gullies develop mainly
during prolonged droughts.
What process creates finely divided red, brown, and yellow minerals in
soils? - 🧠 ANSWER ✔✔Precipitation of iron oxides during the chemical
weathering process
Which of the following materials is/are most susceptible to chemical
weathering by dissolution? - 🧠 ANSWER ✔✔Calcite
Which one of the following statements concerning mechanical weathering
is not true? - 🧠 ANSWER ✔✔Mechanical weathering involves a major
change in the mineral composition of the weathered material.
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
