Samacheer Kalvi 9th Science Books English Medium World of Microbes
Science : Chapter 22 : World of Microbes I . Choose the correct answer. 1. Mycology is the branch of […]
Science : Chapter 22 : World of Microbes I . Choose the correct answer. 1. Mycology is the branch of […]
Science : Chapter 21 : Nutrition and Health I. Choose the best answer1. The nutrient required in trace amounts to
Science : Chapter 20 : Organ Systems in Animals I. Choose the correct answer 1. Which of the following is
Science : Chapter 19 : Plant Physiology I. Multiple choice Questions: 1. A big tree falls in a forest but
Science : Chapter 18 : Organisation of Tissues Section A Ia. Match the following 1. Sclereids Chlorenchyma 2. Chloroplast Sclerenchyma
Science : Chapter 17 : Animal Kingdom I. Choose the correct answer 1. Which is not an insect? Ans; Spider
Science : Chapter 16 : Applied Chemistry I. Choose the correct answer: 1. One Nanometre is Ans : 10-9 metre 2.
Science : Chapter 15 : Carbon and its Compounds I. Choose the Correct Answer 1. A phenomenon in which an
Science : Chapter 14 : Acids, Bases and Salts I. Choose the correct answer 1. Zn + 2 HCl →
Science : Chapter 13 : Chemical Bonding I. Choose the correct answer: 1. Number of valence electrons in carbon is