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: 09/12/2020
9th Standard Science Environmental Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021
Download Tamil Nadu 9th Standard 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 Science Test1.
Which cycie involves transpiration?
Water cycle
Nitrogen cycle
Carbon cycle
All the above
2.
The amount of CO2 present in the atmospheric air is _______________.
0.318%
0.383%
21%
78%
3.
Biotic components include _______________.
All living organism
Light, temperature etc.
Water, mineral and gases
Self nourishing green plants
4.
World water day is celebrated every year on ____________.
August 12
22nd March
June 5
July 10
5.
Deforestation generally decrease ______________.
Rainfall
Global warming
Soil erosion
Drought
6.
Specific constituents such as nitrogen, phosphorus, suspended solids and heavy metals found in the wastewater are removed during ___________ treatment of water recycling process.
primary
tertiary
secondary
none of the above
7.
Identify the incorrect statement with respect to adaptations of earthworm.
Earthworm has a stream lined body with no antennae or fins.
Each segment of earthworm has setae.
Many earthworms become inactive in a process called hibernation, during winter season.
Earthworms remain in its burrow during day time, to avoid sunlight.
8.
Which of the following is not an adaptation of hydrophytes?
poorly developed root system
reduced plant body
water storing parenchymatous tissues
finely divided submerged leaves
9.
The atmospheric carbon dioxide enters into the plants through the process of ______________.
photosynthesis
assimilation
respiration
decomposition
10.
The ice sheets from the north and south poles and the icecaps on the mountains, get converted into water vapour through the process of ______________.
evaporation
condensation
sublimation
infiltration
1.
(a)
Water cycle
2.
(a)
0.318%
3.
(a)
All living organism
4.
(b)
22nd March
5.
(a)
Rainfall
6.
(b)
tertiary
7.
(c)
Many earthworms become inactive in a process called hibernation, during winter season.
8.
(c)
water storing parenchymatous tissues
9.
(a)
photosynthesis
10.
(c)
sublimation
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
