02-01-2013, 04:52 PM
APPLIED GEOLOGY - TWO MARKS QUESTIONS ANSWERS
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1. What is geology?
a. Geology is the science that deals with the origin, age and structure of the earth.
b. Geo refers to earth and logos refer to science.
2. What are the branches of geology?
a. The branches of geology are as follows:
b. Physical Geology
c. Geomorphology
d. Mineralogy
e. Petrology
f. Historical Geology
g. Economic Geology
3. What are the various internal layers of the earth? (University Question)
a. The various layers of the earth are:
b. Crust
c. Mantle
d. Core
4. Explain the role of geology in the field of civil engineering.
• Geology is also defined as the branch of applied sciences which deals with the application of geology for a safe, stable and economic design & construction of civil engineering projects.
• It enables a civil engineer to understand the civil engineering implications related to the area of construction.
5. Define Weathering? Name the different types of weathering?
a. Weathering is defined as the process of decay, disintegration and decomposition of rocks under the influence of chemical agents.
b. The types of weathering are:
c. Physical weathering and chemical weathering.
6. What is exfoliation?
a. The phenomenon of pealing of layers from rocks under the influence of thermal effects and chemical weathering is called exfoliation
7. List the factors affecting weathering?
a. Nature of the rock
b. Climatic condition
c. Physical Environment
8. List the factors affecting weathering?
a. Nature of the rock
b. Climatic condition
c. Physical Environment
9. What is Spheroidal weathering?
a. The chemical decomposition associated with the frost action results in the formation of rounded surfaces of the rock masses. This feature is called spheroidal weathering.