CBSE Class 9 English (Comm.) Workbook - INTEGRATIVE GRAMMAR PRACTICE 1

INTEGRATIVE GRAMMAR PRACTICE 1

1. Study the given notes and complete the paragraph that follows by filling in the blanks.

Mobile phones - emit electromagnetic field - prolonged exposure - research needed - brain illness - cancer memory loss - evidence - likely to cause - health scares - press reports - people worry needlessly.

Think about it. Every time you use a mobile phone, (a) ___________________head to electromagnetic emission. Manufacturers (b) _______________ to prove there is no risk (c)_________. Some evidence, so far suggests that mobile phone emissions (d)______________. These health scares (e)____________________. So, people worry needlessly.

Answer:

CBSE - Class 9 - Maths - CH2 - Polynomials - Exercise 2.2

Carl Friedrich Gauss -
who proved fundamental
theorem of Algebra
(source:wikipedia)

ZEROS (ROOTS) of a POLYNOMIAL

1. A zero of a polynomial p(x) is a number c such that p(c) = 0.
   OR x = c (or x -c = 0 ) is called the root of the polynomial equation p(x).

2. If p(x) = ax + b, a ≠ 0, is a linear polynomial, x = -b/a, is the only zero of p(x), i.e., a linear polynomial has one and only one zero.

3. A zero of a polynomial need not be 0.

4. 0 may be a zero of a polynomial.

5. Every linear polynomial has one and only one zero.

6. A polynomial can have more than one zero.

7. Zeros of the polynomial are also called roots of the polynomial.

MCQs - Science & Technology - Harayana Board Middle School/ NTSE (SAT) Quiz-9/CBSE Class 8

Science & Technology Objective Test -2008 (Haryana Board)/ 

NTSE Sample Quiz-9 (Science) /Class 8 Science

(Good for Class 9 and Class 10  students to brush up their knowledge)

(Total MCQs = 65                                                                                                                              Duration: 1 Hour)

Q1. Some bodies looking like stars, which do not twinkle, are called
(A) Planet
(B) Satellite
(C) Artificial Satellite
(D) Meteorite

Collective Names (Collective Nouns)

Squad of Tourists?

Collective Nouns

Colony of Ants

Congress of Baboons

Herd of Elephants

Pack of Bears

Pad of Paper

Hive of Bees

Swarm of Bees 

Flight of Birds

Flock of Birds

CBSE Class 9 - Science - MCQs asked in SA-1 Examination

MCQs asked in CBSE 2010-2011

Q1: Out of the given four mixtures, the one that appears clear and transparent is:
(a) Chalk powder and water
(b) Sand and water
(c) Starch and water
(d) Sugar and water

CBSE - Class 9 - English (Comm.) Workbook - Unit 2- Determiners

Unit 2 Determiners

1. Complete the introduction given below to the story The Story Teller by Saki (H.H. Munro), by using 'a' 'an' or 'the'.

Answer:

The afternoon was hot, and so was (a) _the_ railway carriage. (b) _The_ next stop was at Templecombe, nearly (c) _an_ hour ahead. In the carriage were a small girl, (d) _a_ smaller girl, and a small boy. (e) _An__ aunt belonging to (f) _the_ children sat in (g) _a_ corner seat, and in (h)_the_ further corner seat on (i) _the_ opposite side, was a man who was a stranger to them, but (j) _the_ small girls and the small boy were (k) _the_ ones who filled the compartment.
The children chatted on and on to their aunt, like (l) _a_ housefly that refuses to be put off. Most of the aunt's remarks seemed to begin with "Don't", and nearly all of (m) _the_ children's remarks began with "Why?"

CBSE - Class X - Science - Ch7 - Control and Coordination

Human Brain
(credits:wpclipart.com)

MCQs, NCERT Chapter Solutions, Q & A

Q1: The plant hormone which is essential for cell division is
(a) Ethylene
(b) Auxin
(c) Gibberellin
(d) Cytokinin

Answer:  (d) Cytokinin