Q1. When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed as
(a) microevolution
(b) co-evolution
(c) convergent evolution
(d) divergent evolution
Download Maths Syllabus for Academic Year 2022-23.
CH-1: Real Numbers
Deleted- Euclid’s Division Lemma (Eg- 2,3) & (Exercise 1.1- Q 2,4,5)
CH-2: Polynomials
Deleted- Division Algorithm for Polynomials.
Pg 33 onwards deleted & Exercise- 2.3 deleted
CBSE Syllabus for Academic Year 2022-23 is available here.
CH-1: Chemical Reactions and Equations
Deleted- Corrosion and Rancidity (Pg-13)
CH-2: Acids, Bases and Salts
No Reduction
Q1(NEET 2017). The final proof for DNA as the genetic material came from the experiments of
(a) Griffith
(b) Hershey and Chase
(c) Avery, MacLeod and McCarty
(d) Har Gobind Khorana
Q1. In Mendel’s experiments with the garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), and yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F2 generation of the cross RRYY × rryy?
(a) Round seeds with yellow cotyledons, and wrinkled seeds with yellow cotyledons.
(b) Only round seeds with green cotyledons.
(c) Only wrinkled seeds with yellow cotyledons.
(d) Only wrinkled seeds with green cotyledons.
Q1. From the sexually transmitted diseases mentioned below, identify the one which does not specifically affect the sex organs–
(a) Syphilis
(b) AIDS
(c) Gonorrhea
(d) Genital warts
Q1. Seminal plasma in humans is rich in
(a) fructose and calcium
(b) glucose and calcium
(c) Progesterone and testosterone
(d) potassium and calcium
Q1(NEET 2018). Which of the following flowers only once in its lifetime?
(a) Bamboo species
(b) Mango
(c) Jackfruit
(d) Papaya
Friction is a necessary evil. It is a type of contact force which always opposes the motion of one object over the other object in contact.
Here worksheet (PDF) is available to test your basic understanding about the chapter.
👉Download the friction worksheet.
Book: Flamingo (Prose)
Q1: Who is the author of 'The Last Lesson'?
Answer: Alphonse Daudet
Q2: What is the background of the story?
Answer: 'The Last Lesson' is set during the Franco-Prussian War (1870-1871), in which France was defeated by Prussia under Bismarck's leadership. Prussia was made up of what are now the countries of Germany, Poland, and parts of Austria. The French territories of Alsace and Lorraine have fallen into Prussian hands in this novel. This story also depicts the impact of the occurrence on routine school life. It also emphasises the suffering inflicted on the people of the territory by invaders who took away their rights to learn and speak their native tongue.
Here, different types of patterns related to addition of rational numbers are given. This will help student understanding the ways to solve these types of questions.
Closure Property of Addition
Rational numbers are closed under addition. It means when we add two rational numbers, the resulting number is rational number also.
The sun, eight planets, satellites and some other celestial bodies known as asteroids and meteoroids form the solar system.
Download the worksheet (Pdf)
👉See Also:
Geography - CH1- The Earth in the Solar System (Q & A)
Geography - CH1 - The Earth in the Solar System (Assignment Sheet)
Geography - CH2 - Globe - Longitudes and Latitudes
Geography - Ch2 - Globe - Longitudes and Latitudes (Questions and Answers)
Geography CH3 - Motions of The Earth (Q & A)
Geography CH7 - Our Country India (Q & A)
Geography - Know About India (Q & A)
Geography - Our Country India (Worksheet)
Geography - Indian States Touching International Borders
Geography CH8 - India: Climate, Vegetation and Wildlife (Q & A)
Social Studies Quiz
Social Studies Quiz (2016)
The tense of an event expresses its time-location. The verb form in a sentence helps to distinguish the different tenses. Past, present, and future are the three main tenses. Each of these tenses has four distinct features in English: simple, perfect, continuous (also known as progressive), and perfect continuous.
Here is a list of important differences related to the Asexual mode and the Sexual Mode of reproduction, commonly asked in examinations.
Binary Fission vs Multiple Fission
Q1. State the effects of force.
Answer: Force may:
➀ make an object move from rest.
➁ change the speed of a moving object.
➂ change the direction of motion of an object.
➃ change the shape of an object.
➄ stop a moving object
Q2. Calculate the pressure exerted by a force of 100 N on an area of 4 m²
Please note the Board will conduct the annual scheme of assessment at the end of the Academic Session 2022-23
Class 9 Science
Deleted Chapters:
- DIVERSITY IN LIVING ORGANISMS
- NATURAL RESOURCES
- WHY DO WE FALL ILL?
Chapter: NATURAL RESOURCES will be taught in the class and students are encouraged to prepare a brief write up on any concept of this chapter in their Portfolio (internal assessment)
For Class 7 / Class 8 / Class 9
The worksheet will help you understand the basic definition of Rational and its properties.
