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Questions and Answers
What is the main mode of transportation for sediments that contribute to the formation of sedimentary rocks?
What is the main mode of transportation for sediments that contribute to the formation of sedimentary rocks?
- Transportation by glacial ice movement
- Transportation by volcanic eruptions
- Transportation by atmospheric precipitation
- Transportation by river water, wind, or glacial ice movement (correct)
What are sedimentary rocks?
What are sedimentary rocks?
- Rocks formed from the compression of organic materials over millions of years
- Rocks formed from the metamorphism of existing rocks
- Rocks formed from loose fragments or detrital sediments deposited by weathering of older rocks (correct)
- Rocks formed from the cooling and solidification of magma or lava
What is the significance of sedimentary rocks in knowing past environments?
What is the significance of sedimentary rocks in knowing past environments?
- They help in identifying the source area of sediments
- They provide information about the present climate conditions
- They are important for knowing about volcanic activities in the past
- They help in knowing depositional environments and provenance of sediments (correct)
What percentage of the earth's land surface is covered by a thin veneer of sediments or sedimentary rocks?
What percentage of the earth's land surface is covered by a thin veneer of sediments or sedimentary rocks?
Which type of sedimentary rock is formed due to evaporation of saline water?
Which type of sedimentary rock is formed due to evaporation of saline water?
Sedimentary rocks are the primary rocks formed directly from magma.
Sedimentary rocks are the primary rocks formed directly from magma.
Sedimentary rocks are formed from loose fragments or detrital sediments.
Sedimentary rocks are formed from loose fragments or detrital sediments.
Almost 90% of the earth's crust is made up of sedimentary rocks.
Almost 90% of the earth's crust is made up of sedimentary rocks.
Transportation of sediments can occur by river water, wind, or movement of glacial ice.
Transportation of sediments can occur by river water, wind, or movement of glacial ice.
Evaporitic rocks are formed due to the evaporation of saline water, such as sea water.
Evaporitic rocks are formed due to the evaporation of saline water, such as sea water.
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