CBSE Class 9 - Science - CH 12 Sound (MCQs)

SOUND

MCQs

Q1: Which of the following waves do not require any kind of medium to propagate?

(a) Sound
(b) Earthquake waves
(c) Light waves
(d) Water surface waves

Q2: Waves produced on the surface of water are:

(a) Longitudinal only
(b) Transverse waves only
(c) Electromagnetic Waves
(d) Both Longitudinal and Transversal

CBSE Class 10 - Science - CH 16 - Management of Natural Resources (Q and A)

Management of Natural Resources

Why do we need to use our resources carefully?

Q & A

Q1(CBSE 2011): What is coliform bacteria? What does its presence in water indicate?

Answer: Coliform is a group of bacteria which is found in human intestines. Its presence in water indicates contamination by disease-causing microbes. Its high presence in rivers and ponds elevates the risks of water borne diseases like gastroenteritis.

Q2(CBSE 2011): State two reasons of launching "Ganga Action Plan". Which bacteria was found in Ganga water indicating contamination?

CBSE Class 9 - हिंदी (ब) स्पर्श - पाठ-15 - अग्नि पथ

अग्नि  पथ

Q1(CBSE 2011): निम्नलिखित काव्यांश को ध्यानपूर्वक पढ़कर नीचे दिए गए प्रश्नों के लिए सही विकल्प चुनिए:

वृक्ष हों भले खड़े,
हों घने, हों बड़े,
एक पत्र-छाँह भी माँग मत, माँग मत, माँग मत!
अग्नि पथ! अग्नि पथ! अग्नि पथ!

तू न थकेगा कभी!
तू न थमेगा कभी!
तू न मुड़ेगा कभी!-कर शपथ! कर शपथ! कर शपथ!
अग्नि पथ! अग्नि पथ! अग्नि पथ!

(i) कवि किसे संबोधित कर रहा है ?

CBSE Class 10 - FIT - Societal Impacts of IT

Societal Impacts of IT

Social Networking
credits:wpclipart

MCQs

Q1: Which of the following is considered as cyber crime?

(a) Virus Attack
(b) Worm Attack
(c) Hacking
(d) All of these

Q2: The use of internet or other electronic media to harass a person or group of individuals or an organization is termed as:

(a) Cybernet
(b) Cyber policing
(c) Cyber stalking
(d) Cyber space

CBSE Class9 - English Comm. Workbook - Integrative Grammar Practice - 6

INTEGRATIVE GRAMMAR PRACTICE 6

Q1: Read the following sentences. Each sentence has four words underlined. Select one underlined word that is incorrect and write it in the space provided. The first one has been done as an example.

Answer:

The Statue of Liberty is designed by Frederic Auguste Barthold.	is
It was completely in France in July 1884.	completely
The statue was shipped to New York with 350 pieces.	with
She arrived there on 17 June 1885.	She
The pieces were put together but the opening ceremony
took place on 28 Oct 1886.	but

CBSE Class 10 - Science - Ch 16 - Management of Natural Resources (Worksheet)

Management of Natural Resources

(Worksheet)

Recycling is important for ecological stability
credits:openclipart

Fill in the blanks

1. ________________ is a group of bacteria, found in human intestines, whose presence in water indicates contamination by disease-causing microorganisms.

2. The ______ of water is something that can easily be checked using universal indicator.

3. The three R’s to save the environment are __________, ___________ and ___________.

4. _________ means that you use less.

CBSE Class 9 - Chemistry - CH4 - Structure of Atom (MCQs)

Structure of Atom

Bohr Model
credits:clker.com

MCQs


Q1: Proton was discovered by:

(a) Rutherford
(b) Goldstein
(c) Chadwick
(d) J.J. Thomson


Q2: Canal rays are _______________

(a) negatively charged particles
(b) positively charged particles
(c) beam of neutrons
(d) gamma radiation


Q3: α-particles are ___________

(a) negatively charged particles
(b) positively charged particles
(c) beam of neutrons
(d) gamma radiation

CBSE Class 9 - Science - CH14 - Natural Resources (Worksheet)

Natural Resources

(Worksheet)

Ozone Layer
credits:classroomclipart

Fill in the blanks

1. Hot air is ___________ than cold air.

2. Green plants convert carbon dioxide into glucose in the presence of ______________.

3. The life-supporting zone of the Earth where the atmosphere, the hydrosphere and the lithosphere interact and make life possible, is known as the ____________.

4. The space among the soil particles are filled with ________.

CBSE Class 8/9/10/CTET - English Comprehension (Unseen Poem)-2

Reading Comprehension

(Unseen Poem)

Q1(CTET 2012): Directions: Read the poem given below and answer the questions that follow by selecting the most appropriate option.

I build walls
Walls that protect,
Walls that shield,
Walls that say I shall not yield
Or reveal
Who I am and how I feel.

CBSE Class 7 - Science - Reproduction in Plants

Reproduction in Plants

Concept Map on Reproduction of Plants
Flower image credits: wpclipart

NCERT Chapter Solution, Q & A

Q1:  Fill in the blanks

Answer:
(a) Production of new individuals from the vegetative part of parent is called_vegetative propagation_.

(b) A flower may have either male or female reproductive parts. Such a flower is called_unisexual flower_.

(c) The transfer of pollen grains from the anther to the stigma of the same or of another flower of the same kind is known as _pollination__.

(d) The fusion of male and female gametes is termed as _fertilization___.

(e) Seed dispersal takes place by means of _wind__, __water_ and _animals_.

(f)  Asexual reproduction in spirogyra is an example of _fragmentation__.

(g) Mosses, Ferns, Moulds etc. reproduce by _spores___ formation.