9th Standard Syllabus & Materials
9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -கற்கண்டு (இலக்கணம்) - தொடர் இலக்கணம், ஆகுபெயர் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -விரிவானம் (துணைப்பாடம்) - தாய்மைக்கு வறட்சி இல்லை! Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் -கவிதை பேழை (செய்யுள்) - மார்கழி பெருவிழா Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உயிருக்கு வேர்-இலக்கணம் - பகுபத உறுப்பிலக்கணம் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil அமுதென்று பேர் - இலக்கணம்-எழுத்து -அளபெடை Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil அமுதென்று பேர்-துணைப்பாடம் - ஆறாம்திணை Important Questions And Answers Study Material - QB365 Set A
Published on: 14/06/2021
QB365 provides detailed and simple solution for every book back questions in class 9 Social Science subject.It will helps to get more idea about question pattern in every book back questions with solution.
Download Tamil Nadu 9th Standard Social Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Social Science Test
1.
How does a cave differ from a sea arch?
2.
What are ox-bow lakes?
3.
Mention the three courses of a river with any two land forms associated to each course.
4.
What do you mean by biological weathering?
5.
Define weathering.
1.
| Sea cave | Sea Arch |
| Prolonged wave attack on the base of a cliff erodes rock materials which result in the formation of caves. | When two caves approach one another from either side of a headland and Unite, they form an arch. e.g., Neil Island, Andaman & Nicobar |
2.
(i) Meanders in due course of time become almost a complete circle with narrow necks
(ii) This is turn gets abandoned and forms a lake.This is called an Ox-bow lake
3.
The course of a river is divided into
(i) The Upper course - V shaped valleys, gorges
(ii) The middle course - Alluvial fans, flood plains
(iii) The lower course - Delta and Estuary
Associated land forms
i) Water falls - The upper course
ii) Ox bow lakes - The middie course
iii) Deltas - The lower course
4.
Biological weathering occurs due to the penetration and expansion of plant roofs, earth worms, burrowing animals (rabbits, rats) and same human activities.
5.
(i) Weathering is the disintegration and decomposition of materials of the earth's crust by their exposure to atmosphere.
(ii) The nature and magnitude of weathering differs from place to place and region to region.
9th Standard Syllabus & Materials
9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - மணிமேகலை Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உள்ளத்தின் சீர் - ஏறு தழுவுதல் Important Questions And Answers Study Material - QB365 Set A
NEW9th Standard
TN 9th Tamil உயிருக்கு வேர் - தண்ணீர் Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 9th Standard Subjects
Tamilnadu Stateboard Standards
