10th Standard Syllabus & Materials
10th Standard
TN 10th English Prose - 4 - The Attic Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Supplementary - 3 - The Story of Mulan Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Poem - 3 - I am Every Woman Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Prose - 3 - Empowered Women Navigating The World Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Supplementary - 2 - Zigzag Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Poem - 2 - The Grumble Family Important Questions And Answers Study Material - QB365 Set A
Published on: 03/07/2021
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Download Tamil Nadu 10th 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.
Explain Atavism?
2.
What is theory of Spontaneous generation or Abiogenesis?
3.
Explain Biogenesis.
4.
What is theory of Cosmic origin?
5.
Explain the Theory of Special Creation.
1.
The reappearance of ancestral characters in some individuals is called atavism. Presence of rudimentary tail in new born babies, presence of thick hair on the Human body are examples of atavism.
2.
(i) According to this theory life originated spontaneously from lifeless matter.
(ii) It was believed that fishes originated from mud, frogs from moist soil and insects from decaying matter.
3.
It was speculated by Louis Pasteur (1862) that life originates from pre-existing life. He showed that pre-sterilised flasks kept closed airtight, with killed yeast, did not give rise to any life form, while in another flask kept open to air, living organisms arose from killed yeast.
4.
Extraterrestrial or Cosmic orgin: Some scientists still believe that life came from outer space. This states that units of life called spores (Panspermia) were transferred to different planets including Earth. This is still an idea of some Astronomers.
5.
This idea states that life on Earth is a divine creation and also attributes to supernatural event at a particular time in the past. It also emphasize that life has not changed ever since its origin.
10th Standard Syllabus & Materials
10th Standard
TN 10th English Prose - 2 - The Night the Ghost Got in Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Supplementary - 1 - The Tempest Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Poem - 1 - Life Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Prose - 1 - His First Flight Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
