CBSE Class 10/9/8 - English Grammar - Types of Prepositions

Types of Prepositions

I n the earlier post you have learned about forms of preposition. As we know a Preposition is a word place before a Noun (or Pronoun) to show in what relation the person or thing denoted by the Noun stands to something else.

Prepositions are mainly of five types:

① Preposition of Place

② Preposition of Time

③ Preposition of Direction

④ Preposition of Movement

⑤ Preposition of Position

① Preposition of Place: There are three prepositions of places:

⒜ At - used for a point of place (for small towns, villages or less important or small places)

e.g.

At home

At the exit/entrance

At work

He lives at Meharauli in Delhi.

At school

⒝ In - Used for spaces, for large places, countries, large towns, state of rest or position inside anything.

e.g.

He lives in Delhi.

In the mall

He is in his room.

He lives at Panji in Goa.

Class 12 - Business Studies - Different Types of Plan

Different Types of Plan

Question: What is a business plan?

Answer: A detailed written statement that describes the nature of the business, the target market, the advantages the business will have in relation to competition, and the resources and qualifications of the owner(s).It is a document that outlines how goals are going to be met.

Different Types of Plan:

Plans are made based on Strategic planning, tactical planning, operational planning and contingency planning.

CBSE Class 9 - Hindi (B) - अग्निपथ - कविता का सारांश

अग्निपथ

हरिवंशराय बच्चन (१९०७-२००३)

वृक्ष हो भले खडे,

हों घने, हों बडे,
एक पत्र छाहं भी,
मांग मत, मांग मत, मांग मत,
अग्निपथ, अग्निपथ, अग्निपथ |

तू न थकेगा कभी,
तू न थमेगा कभी,
तू न मुडेगा कभी,
कर शपथ, कर शपथ, कर शपथ,
अग्निपथ, अग्निपथ, अग्निपथ |

यह महान दृश्य है,
चल रहा मनुष्य है,
अश्रु, स्वेद, रक्त से,
लथपथ, लथपथ, लथपथ,
अग्निपथ, अग्निपथ, अग्निपथ |

कविता का सारांश

CBSE Class 10 - Maths - Arithmetic Progressions ( Questions and Answers)

Arithmetic Progressions

Class 10 NCERT Exemplar Chapter Solutions

Q 1(MCQ): In an AP, if d=-4,a_n=7 and a_n=4, then a is equal to

(a) 6

(b) 7

(c) 20

(d) 28

Answer: (d) In an AP, a_n=a+(n-1)d
⇒ 4=a+(7-1) (-4)
⇒ 4=a+6(-4)
⇒ 4+24=a
∴ a=28


Q 2(mcq): In an AP, if a=3.5,d=0 and n=101, then a_n will be
(a) 0

(b) 3.5

(c) 103.5

(d) 104.5

Answer: (b) 3.5
For an AP, a_n =a+(n-1)d=3.5+(101-1)×0
∴ =3.5


Q 3(mcq): The list of numbers are -10,-6,-2,2,.... is

(a) an AP with d=-16

(b) an AP with d=4

(c) an AP with d=-4

(d) not an AP

Answer: (b) The given numbers are -10,-6,-2,2...is
Here, a₁ = -10,
          a₂ = -6,
          a₃ = -2
    and a₄ =2...

Since, a₂ - a₁ = -6-(-10)

           = -6+10=4

   a₃-a₂= -2-(-6)

           =-2+6=4

   a₄-a₃=2-(-2)
            =2+2=4
Each successive term of given list has the same difference i.e.,4.
So, the given list forms an AP with common difference, d=4.


Q 4(mcq): The first four terms of an AP whose first term is -2 and the common difference is -2 are

(a) -2,0,2,4

(b) -2,4,-8,16

(c) -2,-4,-6,-8

(d) -2,-4,-8,-16

Answer: (c) -2,-4,-6,-8
Let the first four terms of an AP are a,a+d,a+2d and a+3d.
Given, that first term, a=-2 and common difference, d=-2, then we have an AP as follows
     -2,-2,-2,-2+2(-2),-2+3(-2)
= -2,-4,-6,-8

CBSE Class 9 - Geography - Natural Vegetation and Wildlife (Q and A)

NATURAL VEGETATION AND WILDLIFE

Munnar Hills (Kerala)

Q & A based on Class 9 NCERT Chapter

Q1: Name the different types of vegetation identified in India.

Answer:  The following major types of vegetation may be identified in India.
 ⅰ Tropical Rain Forests
 ⅱ Tropical Deciduous Forests
 ⅲ Tropical Thorn Forests and Scrubs
 ⅳ Montane Forests
 ⅴ Mangrove Forests


Q2: Mention any three features of the tropical evergreen forests.

Answer:
① These forests are found in the areas of heavy rainfall, i.e., Western Ghats, the Island groups of Lakshadweep, Andaman and Nicobar, upper parts of Assam and Tamil Nadu coast.

②The trees in these forest reach great heights up to 60 metres or even above.

③ As such, these forests appear green all the year round. It is because there is no definite time for trees to shed their leaves.


Q3: Why is natural vegetation in large part of India no more natural?

5 Things Parents Must Take Care While Meeting School Authorities

5 Things Parents Must Take Care While Meeting School Authorities

Here is the info-graphic listing five important points you must take care  while meeting School Authorities. Be it admission interaction or interview or parent teachers meeting, school authorities do assess parents and try to find out the parents level of commitment to the child.

CBSE Class 9 - Science -Work Energy and Power - Question Bank

Work Energy and Power

Question Bank

Here is the compilation of questions asked in CBSE Examination papers in last five years.



Q1: Is it possible that a body is displaced and yet its work is done is zero? If yes write an example?

Q2: If the net work done on a particle is zero, is it possible the particle has uniform speed? How?

Q3: A body is moving on a straight road against a frictional force of 5N. After travelling a distance of 1.5 km he forgot to take the correct path at a roundabout of radius 100m. He moves the circular path of 1½ cycles then he moves forward up to 2km. Calculate the work done by him.

Q4: A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force. Let us take it that the force acts on the object through displacement. What is the work done in this case?
Q5: When do we say that work is done?

Q6: Write an expression for the work done when a force is acting on an object in the direction of its displacement.

Q7: Define 1J of work.

Q8: A pair of bullocks exerts a force of 140 N on a plough. The field being ploughed is 15 m long. How much work is done in ploughing the length of the field?

Q9: What is the kinetic energy of an object?

Q10: Write an expression for the kinetic energy of an object?

CBSE Class 9/10 - ENGLISH GRAMMAR - CLOZE TEST-3

CLOZE TEST-3

ENGLISH GRAMMAR

Directions: In the following passage there are blanks, each of which has been numbered. These numbers are printed below the passage and against each, five words are suggested, one of which fits the blank appropriately. Find out the appropriate word in each case.

(✍Following Passage appeared in Indian Bank PO Exam 2010)

Passage

The World Diabetes Congress has determined that India has the largest number of diabetics in the world. Apart from the loss of productivity, the …(1)… burden is alarming – $ 2.8 billion annually. Sedentary jobs, …(2)… of electronic entertainment, changing diet patterns and …(3)… dependence on automobiles have driven the activity …(4)… of Indians’ lives especially in cities.

The …(5)… is, therefore, to make people physically …(6)… and requires interventions which impact a large …(7)… of the population. Admittedly physical activity is a …(8)… of choice and is strongly driven by …(9)… preferences. But policy making needs to shift to …(10)… moderate levels of physical activity in the daily lives of people. One way to accomplish this is to create walk-able communities that give residents a variety of destinations within walking distance.


1.
(A) economic
(B) finance
(C) subsidy
(D) physical
(E) health

CBSE Class 7 - Geography - Ch5 - Water (Short Q and A)

WATER

image credits: wikimedia commons

Short Q & A based on NCERT Chapter

Q1: What is precipitation?

Answer: The condensation of water vapour in the form of water droplets or ice-crystals and its falling on the earth’s surface is known as precipitation.


Q2: Define glacier.

Answer: The moving mass of ice is called glacier.


Q3: What is the taste of sea water?

Answer: The taste of sea water is salty.


Q4: Why is sea water saline?

Answer: Sea water is saline due to the dissolution of large amount of salt in it.

CBSE Class 8/9/10 - English Grammar - Forms of Preposition

Prepositions

Prepositions are words which show the relationship between two words in a sentence.

The relationship can include
- direction,
- place (or a particular point or location),
- time,
- manner,
- cause and
- amount (or degree).

☛Note: The preposition is almost always before the noun or pronoun and hence it is called a preposition.

FIVE FORMS OF PREPOSITION

There are five forms of prepositions i.e.

① Simple Prepositions
② Compound Prepositions
③ Double Prepositions
④ Participle Prepositions
⑤ Phrase Prepositions

CBSE Class 11/AIPMT - Plant Nutrition (MCQs)

Plant Nutrition

Biology Quiz

Azolla - an aquatic fern has Nitrogen Fixing capability

MCQs for AIPMT/CEET/Pre Medical

Q1: Nitrifying bacteria converts

(a) atmospheric nitrogen into soluble forms
(b) convert ammonia to nitrate
(c) ammonia to nitrogen
(d) nitrate to nitrogen.


Q2: Amino acids are mostly synthesized from

(a) mineral acids
(b) fatty acids
(c) volatile acids
(d) alpha-ketoglutaric acid


Q3: Which of the following is a micro-nutrient for plants?

(a) Pottassium
(b) Iron
(c) Iodine
(d) Zinc


Q4: If a plant’s younger leaves are yellowing but older one remains green, what could be the most probable cause of plant’s blight?

(a) Improper sunlight
(b) Lack of nitrogen fixing bacteria in soil
(c) Deficiency of immobile mineral nutrient
(d) Deficiency of mobile mineral nutrient


Q5: Enzyme involved in nitrogen assimilation is ___________.

CBSE Class 9 - Science - Work Power and Energy (ENERGY TRANSFORMATIONS) - Worksheet

ENERGY TRANSFORMATIONS

Worksheet

Give examples for the following scenarios of energy transformations. You may choose the answer(s) from the following list of words

solar cell, turbine, mixer, fan, steam engine, automobiles, green plants, nuclear reactor, electric bulb, torch, electric bulb, microphone, loudspeaker, geyser, heater, car battery, inverter, LPG

SNo.	Energy Transformation From ⟶ To	Give Example
1.	Mechanical ⟶ Electrical	_________
2.	Electrical ⟶ Mechanical	_________
3.	Electrical ⟶ Heat	_________
4.	Heat ⟶ Mechanical	_________
5.	Electrical ⟶ Light	_________
6.	Electrical ⟶ Sound	_________

CBSE Class 8 Maths - Linear Equations In One Variable (Q and A) (#eduvictors)(#class8Maths)

Linear Equations In One Variable

Class 8 Maths

Q & A based on Class 8 NCERT Chapter 

Q1(MCQ): If 3x – 4 (64 – x) = 10, then the value of x is

(a) –266
(b) 133
(c) 66.5
(d) 38



Answer: (d)38
  3x - 256 + 4x =10
  7x = 10 + 256 = 266
  x = 266/7 = 38


Q2: Three consecutive even numbers whose sum is 156 are 51, 52 and 53.
State if the above statement is True or False

Answer: False

Let the three consecutive even numbers be x, x+2, x+4
∴ x + x+ 2 + x+4 = 156
⇒ 3x + 6 = 156
⇒ 3x = 156 - 6 = 150
⇒ x = 150 /  3 = 50
Thus numbers are 50, 51, 52


Q3: Fifteen added to thrice a whole number gives 93. The number is __________.

Answer: 26



Q4: x = –12 is the solution of the linear equation 5x –3(2x + 1) = 21+x (True or False)

CBSE Class 9 - Maths - Quadrilaterals (Questions and Answers)

Quadrilaterals 

Class 9 NCERT Exemplar Problems and Solutions

Question 1: If angles A,B,C and D of a quadrilateral ABCD, taken in order, are in the ratio 3:7:6:4 then ABCD is a trapezium. Is this statement true? Give reason for your answer.

Solution: Since, the angles are in the ratio 3:7:6:4,

Let these angles be 3x,7x,6x and 4x.

∵Since sum of angles of a quadrilateral is 360°,

∴3x+7x+6x+4x=360°

⇒ 20x=360°

⇒x=18°

∴The angles are:
   ∠A=3×18°=54°,
  ∠B=7×18°=126°,
  ∠C=6×18°=108° and
 ∠D=4×18°=72°

Since ∠A+∠B=54°+126°=180°. Thus, the sum of co-interior angles is 180°formed by lines AD,BC and transversal AB, ∴, AD∥BC.

So,ABCD is a trapezium.

Hence, the given statement is true.

CBSE Class 6-10 - English Grammar - Error Correction - Subject-Verb Agreement

Error Correction - Subject-Verb Agreement

English Grammar

The verb in a sentence has to agree with the number of the subject.

Rule 1: A singular subject takes a singular verb.
e.g.

A girl _______ (dance/dances) beautifully.  [Answer: dances]

This article _________ (has/have) three paragraphs.  [Answer: has]


Rule 2: A plural subject takes a plural verb.

e.g.

Those girls __________ (dance/dances) beautifully.   [Answer: dance]

These articles _________ (has/have) single paragraph only.  [Answer: have]


Rule 3: If two singular nouns are joined by 'and' and used as the subject, it takes plural verb.

e.g.
Mohan and Sudama  _________ (was/were) fast friends.   [Answer: were]

He and I _________(am/are) going to welcome them. [Answer: are]


Exceptions: Words used in pairs like 'bread and butter', 'bag and baggage' are considered singular and take singular verbs.

e.g. Blogging ______ (is/are) my bread and butter now.

CBSE Class 7 - Social and Political Life II - Chapter 7 - Understanding Advertising (Questions and Answers)

Social and Political Life II  

Chapter 7 

Understanding Advertising

Questions & Answers based on NCERT Chapter 7 Class 7

Q1: Define advertisement.

Answer: Advertising is any paid form of presentation and promotion of ideas, products and services by an identified sponsor.


Q2: What is product?

Answer: A product refers to a thing or good or service that has been made for being sold in the market.


Q3: What do you understand by the word brand? List two reasons why building brands is central to advertising?

Answer: A brand means stamping a product with a particular name or symbol or sign by which it is differentiated from other products in the market.

Two reasons why building brand is central to advertising are:

① It builds a positive image about the product and thus helps consumer to buy it.
② It differentiates the product from other competitive products available in the market.

Class 6 - Civics - Chapter 3 - What is Government?

What is Government?

Class 6 Civics NCERT Chapter Solutions and Q & A

Question 1: What do you understand by the world 'government'? List five ways in which you think the government affects your daily life?

Answer: The government affects our daily lives in the following ways:

① It protects boundaries of the country and maintains peaceful relations with other countries.

② It ensures that there is no food shortage and every citizen gets food to eat.

③ It provides health care facilities to look after the health of the people.

④ In case of natural disasters like Tsunami or an earthquake or emergencies, the government organises aid and assistance for the affected people.

⑤ If there is a dispute or crime, the courts will provide justice.

⑥ It helps in building country's infrastructure e.g. Bharat petroleum, Indian Railways are the institutions run by the government.



Question 2: Why do you think the government needs to make rules for everyone in the from laws?

Answer: It is necessary for the government to make rules for everyone in the from laws because:

① It helps in proper functioning of the government.

② It fulfills the assurances set by our constitution i.e. Justice, Liberty, Equality and Fraternity.

③ It ensures there is crime free society and all citizens lead to peacful life.

④ It prevents authority misusing the powers.



Question 3: Name the essential features of a democratic government?

Answer: The essential features of a democratic government are:

① In democracy, it is the people who give the government this power. Citizens  participate to form a government by election process.

② The government is answerable to the people for its actions and decisions.

CBSE Class 9 - Science - Floatation 7 Simple Numerical You Must Know

Floatation
7 Simple Numerical You Must Know

Q1: A force of 200 N acts on a surface of area 10 cm². Calculate thrust and pressure. How much the pressure changes if the area of contact increases to 50 cm².

Answer:
Force = 200 N
Area = 10cm² = 10 x 10^-4m²
Pressure (P) = Force ÷ Area
P1 = 200 ÷ 10 x 10^-4 = 2 x 10⁵ Pa

New area = 50cm² = 50 x 10^-4m²
P2 = 200 ÷ 50 x 10^-4 = 4 x 10⁴ Pa

Change in Pressure = P1 - P2 = 2 x 10⁵   - 4 x 10⁴
                                = 1.6 x 10⁵ Pa



Q2: A cuboid room has dimensions 50m x 15m x 3.5m. What is the mass of the air enclosed in the room if the density of air = 1.30 kg/m³.


Answer: Volume of room (V) = 50m x 15m x 3.5m = 2625m³
Density of air (d) = 1.30 kg/m³
Mass of air = V x d = 2625 x 1.30 = 3412.5 kg

Class 10 - Biology - How Do Organisms Reproduce? - Worksheet

Reproduction 

Longitudinal Section of a Bisexual Flower
Label the parts of the flowers (answer given in this post)
image credits: wikimedia

Worksheet

Fill in the blanks


1. In _________, many bacteria and protozoa simply divide into two or more daughter cells.


2. __________ is associated with the stability of population of species.


3. The fertilized egg gets implanted in the lining of the ________.


4. In mammals, the embryo gets nutrition from the mother’s blood with the help of a special tissue called _________.

Class 9 - Maths - Quadrilaterals - Important Points to remember (#CBSE-Notes)

Quadrilaterals 

Important Points to remember

Based on Class 9 NCERT Chapter on Quadrilaterals

Simple Classification of Quadrilaterals.
For detailed version check at wikipedia

① A simple closed figure bounded by four line segments is called quadrilateral.

② The sum of (interior) angles of a quadrilateral is 360°- Angle Sum Property of Quadrilateral

③ A quadrilateral in which one pair of opposite sides is parallel is called trapezium.

④ A quadrilateral in which both pairs of opposite sides are parallel is called parallelogram.

⑤ If one of the angles of a parallelogram is right angle then it is a rectangle.

⑥ If all sides of a quadrilateral are equal then it is called rhombus.