8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - வினைமுற்று Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - மயங்கொலிகள் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை -பட்டமரம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - இயற்கையை போற்றுவோம் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 1 - தமிழ் இன்பம் - ஆழிக்கு இணை Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2-ஈடில்லா இயற்கை - திருக்குறள் Important Questions And Answers Study Material - QB365 Set A
Published on: 16/06/2021
QB365 provides detailed and simple solution for every Book back Questions in class 8 Science Subject. It will helps to get more idea about question pattern in every book back questions with solution.
Download Tamil Nadu 8th 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.
What do you understand by the term bio magnification
2.
Mention four main reasons for the conservation of forests.
3.
Write the advantages of the Red Data Book.
4.
What is an endangered species? Give two examples.
5.
What is tissue culture?
1.
Biomagnification is the increase in contaminated substance due to the intoxicating environment. The contaminants might be heavy metals such as mercury, arsenic and pesticides such as polychlorinated biphenyls and DDT (Dichloro Diphenyl Trichloro ethane).
2.
Conservation is protection, preservation, management of wildlife and natural resource such as forest and water. It help us to protect maintain and recover endangered animals and plant species.
3.
(i) It helps to evaluate the population of a particular species.
(ii) The data given in this book can be used to evaluate the species at the global level.
(iii) The risk of a species becoming globally extinct can be estimated with the help of this book.
(iv) It provides guideline for implementing protective measures for endangered species.
4.
An endangered species is an animal or plant that is considered to be at the risk of extinction. It means that there are only few of them left on the earth and soon they might extinct. Eg: Snow Leopard, Asiatic lion Lion tailed macaque.
5.
Tissue culture: It is the technique of growing plant cells, tissues, organs, seeds or other plant parts in a sterile environment on a nutrient medium.
8th Standard Syllabus & Materials
8th Standard
TN 8th Tamil இயல் 3 - கல்வி கரையில - பாடறிந்து ஒழுகுதல் Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - பல்துறைக் கல்வி Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 3-கல்வி கரையில - புத்தியைத் தீட்டு Important Questions And Answers Study Material - QB365 Set A
NEW8th Standard
TN 8th Tamil இயல் 2 - ஈடில்லா இயற்கை - தமிழர் மருத்துவம் ( நேர்காணல்) Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 8th Standard Subjects
Tamilnadu Stateboard Standards
