12th Standard Syllabus & Materials
12th Standard
TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின் - வணிக பாதுகாப்பு அமைப்புகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A
Published on: 21/06/2021
QB365 provides detailed and simple solution for every Creative Questions in class 12 Biology Subject. It will helps to get more idea about question pattern in every Creative questions with solution.
Download Tamil Nadu 12th Standard Biology 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 Biology Test1.
Which is not a physical method of waste water treatment.
(i) Floatation
(ii) Filtration
(iii) Phydro remediation
(iv) Oxidation
i and iii
ii and iv
i and ii
iii and iv
2.
A lake which is rich in organic waste may result in
Drying of the lake due to algal bloom
Increased population of fish due to lots of nutrients
Mortality of fish due to lack of oxygen
Increases population of aquatic organisms due to minerals
3.
Increase in the concentration of the toxicant at successive trophic levels is known as
Biodeterioration
Biotransformation
Biogeochemical cycling
Biomagnifications
4.
Which one of the following expanded forms of the following acronyms is correct?
| UNEP | United Nations Environmental Policy |
| EPA | Environmental Pollution Agency |
| IUCN | International Union for Conservation of Nature and Natural Resources |
| IPCC | International Penal for climate Change |
5.
The tolerable level of sound is _____________
140 db
120 db
100 db
2220 db
1.
(d)
iii and iv
2.
(c)
Mortality of fish due to lack of oxygen
3.
(d)
Biomagnifications
4.
(c)
| IUCN | International Union for Conservation of Nature and Natural Resources |
5.
(b)
120 db
12th Standard Syllabus & Materials
12th Standard
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TN 12th Computer Applications கணினி வலையமைப்பு ஓர் அறிமுகம் Sample Question Papers Study Material - QB365 Set A
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Tamilnadu Stateboard 12th Standard Subjects
Maths
Chemistry
Physics
Biology
Computer Science
Business Maths and Statistics
Economics
Commerce
Accountancy
History
Computer Applications
Biology
Computer Technology
Computer Applications
Computer Science
Business Maths and Statistics
Commerce
Economics
Maths
Chemistry
Physics
Computer Technology
History
Accountancy
Tamil
English
French
Tamilnadu Stateboard Standards
