"When in doubt, observe and ask questions. When certain, observe at length and ask many more questions."
Created this thread as a one stop solution for all members so that all the doubts wherein any conceptual clarification is required can be solved here.
Hi, @forumiasacademy
SFG 2.0 Test 16, 3rd August
Please clarify following
Question 10
Statement 1. Sedimentary rocks are formed at earth's surface by the hydrological system.
The process should be weathering or erosion by agents ( which also include water) followed by deposition, settling and compaction.
Hydrologic system would include only one agent of weathering or erosion and not all. Also statement does not indicate settling and compaction which is necessary for sedimentation, and whole process is called lithification.
Hydrologic system is not mention in NCERT or wikipedia.
Question 29
Statement 1. Earth's interior underwent stratification which gave rise to a layered structure.
Word stratification is used for mainly sedimentary rocks. The layering of earth's exterior is specifically called "differentiation" due to density difference.
Please clarify if we can use stratification
Question 32
Statement (a) Mass movements are aided by gravity.
There us difference between causative factor and aid factor. Gravity is one and only causative factor for mass movements. Aid would mean that mass movement can happen even without gravity, which is not true.
Similarly in question 9
Which of the following can aid in physical weathering of a rock?
Word "aid" create confusion. Shouldn't it uses which of the following can cause physical weathering of a rock?
Thanks
Hi, @forumiasacademy
SFG 2.0 Test 16, 3rd August
Please clarify following
Question 10
Statement 1. Sedimentary rocks are formed at earth's surface by the hydrological system.
The process should be weathering or erosion by agents ( which also include water) followed by deposition, settling and compaction.
Hydrologic system would include only one agent of weathering or erosion and not all. Also statement does not indicate settling and compaction which is necessary for sedimentation, and whole process is called lithification.
Hydrologic system is not mention in NCERT or wikipedia.
Question 29
Statement 1. Earth's interior underwent stratification which gave rise to a layered structure.
Word stratification is used for mainly sedimentary rocks. The layering of earth's exterior is specifically called "differentiation" due to density difference.
Please clarify if we can use stratification
Question 32
Statement (a) Mass movements are aided by gravity.
There us difference between causative factor and aid factor. Gravity is one and only causative factor for mass movements. Aid would mean that mass movement can happen even without gravity, which is not true.
Similarly in question 9
Which of the following can aid in physical weathering of a rock?
Word "aid" create confusion. Shouldn't it uses which of the following can cause physical weathering of a rock?
Thanks
q10:
Statement is correct.
Sedimentary rocks are formed on the Earth’s surface by the hydrological system.
Formation involves: Weathering of preexisting rock, Transportation to a new site, Deposition of the eroded material, Lithification. Hydrological system includes all agents and their interrelated processes as well.
Hi, @forumiasacademy
SFG 2.0 Test 16, 3rd August
Please clarify following
Question 10
Statement 1. Sedimentary rocks are formed at earth's surface by the hydrological system.
The process should be weathering or erosion by agents ( which also include water) followed by deposition, settling and compaction.
Hydrologic system would include only one agent of weathering or erosion and not all. Also statement does not indicate settling and compaction which is necessary for sedimentation, and whole process is called lithification.
Hydrologic system is not mention in NCERT or wikipedia.
Question 29
Statement 1. Earth's interior underwent stratification which gave rise to a layered structure.
Word stratification is used for mainly sedimentary rocks. The layering of earth's exterior is specifically called "differentiation" due to density difference.
Please clarify if we can use stratification
Question 32
Statement (a) Mass movements are aided by gravity.
There us difference between causative factor and aid factor. Gravity is one and only causative factor for mass movements. Aid would mean that mass movement can happen even without gravity, which is not true.
Similarly in question 9
Which of the following can aid in physical weathering of a rock?
Word "aid" create confusion. Shouldn't it uses which of the following can cause physical weathering of a rock?
Thanks
Q 29:
Stratification is arrangement into different groups or layers. The word stratification is correct here.
The stratification of Earth into its geologic layers was brought about by the formation of the Earth's iron core. The iron core was generated by a combination of radioactive decay and gravitation, which raised the temperature enough for molten iron to form. The migration of molten iron to the center of the Earth displaced the less dense materials toward the surface.
Hi, @forumiasacademy
SFG 2.0 Test 16, 3rd August
Please clarify following
Question 10
Statement 1. Sedimentary rocks are formed at earth's surface by the hydrological system.
The process should be weathering or erosion by agents ( which also include water) followed by deposition, settling and compaction.
Hydrologic system would include only one agent of weathering or erosion and not all. Also statement does not indicate settling and compaction which is necessary for sedimentation, and whole process is called lithification.
Hydrologic system is not mention in NCERT or wikipedia.
Question 29
Statement 1. Earth's interior underwent stratification which gave rise to a layered structure.
Word stratification is used for mainly sedimentary rocks. The layering of earth's exterior is specifically called "differentiation" due to density difference.
Please clarify if we can use stratification
Question 32
Statement (a) Mass movements are aided by gravity.
There us difference between causative factor and aid factor. Gravity is one and only causative factor for mass movements. Aid would mean that mass movement can happen even without gravity, which is not true.
Similarly in question 9
Which of the following can aid in physical weathering of a rock?
Word "aid" create confusion. Shouldn't it uses which of the following can cause physical weathering of a rock?
Thanks
The statement is correct. Gravity is the main force responsible for mass movements.
An advise: I think you are reading too much into words. UPSC will also use common words randomly. And if you read too munch into it, you may end up attempting very less questions.
Consider the following statements regarding Basel III Norms:
1. Tier 1 and Tier 2 capital of a bank must be a minimum of 8% of its risk-weighted holdings
. 2. The Minimum Capital Adequacy Ratio including the Capital Conservation Buffer, is 10.5%.
DOubt :
Both statement will be correct only becoz it says BASEL 3 and not RBI's BASEL 3 norms for scb correct ???
SFG 2.0 Test 19, 6th August
Question 35
Sir,
Banas, not luni is the largest river of Rajasthan.
Luni is the largest river system of Rajasthan, west of Aravali. Banas flows east of Aravali.
Length of Luni 495 km
Length of Banas 512 km
Catchment area of Luni 37800sqm
Catchment area of Banas 45800 sqm
sir question 19 SFG2.0 test 19
Doddabeta is the third highest peak and not the secong highest peak in peninsular india. it is incorrectly mention in NCERT https://www.mapsofindia.com/answers/india/tallest-peak-peninsular-india/#:~:text=Meesapulimala%20(Idukki%2C%20Kerala)%20is,older%20than%20the%20Western%20Ghats.
from what I have understood:
Convectional rise of air >high pressure at equatorial tropopause >Air descends at poles and creates low pressure at polar tropopause >pressure gradient + high speed + Coriolis force = high-speed winds parallel to the pressure gradient.
Now, what are these winds called? Geostrophic or Jetstreams? If any one, how is the other one formed?
And if the jet stream is a subset of geostrophic, what other geostrophic winds are there?