CBSE Class 6/7/8 - English Grammar - Degrees of Adjectives

Degrees of Adjectives 

Q: Fill in the blanks with correct degree of adjective:

1. Mohan is _________ than Sohan (wise).
2. This bag is too big; do you have a ________ one? (small)
3. The pears are __________ than the plums. (hard)
4. Mohan is the _________ of the two boys. (tall)
5. Chinese is ___________ than English. (difficult)
6. Saina is one of the ________ badminton player in the world. (good)
7. This is the ___________ painting in the museum. (valuable)

CBSE Class 8 - Science - CH 18 - POLLUTION OF AIR AND WATER

POLLUTION OF AIR AND WATER

NCERT Solution, Q & A

Q1: What are the different ways in which water gets contaminated?

Answer: Water gets contaminated in the following ways:

1. Various industrial units dispose off the chemicals in rivers. These chemicals are harmful and poisonous and contaminate water.
2. Water gets contaminated when sewage is disposed off (without any treatment) in rivers.
3. Ground water gets contaminated by harmful insectisides and pestisides sprayed by farmers and it becomes unfit for drinking.

Q2: At an individual level, how can you help reduce air pollution?

CBSE Class 9 - Science - CH 4 - STRUCTURE OF THE ATOM

STRUCTURE OF THE ATOM

Bohr Model

NCERT Solutions, Q & A

Q1(CBSE 2011): Name the fundamental particle not present in the nucleus of hydrogen atom

Answer: Neutron

Q2: Who discovered electrons?

Answer: J.J. Thomson


Q3: Who discovered protons?

Answer: Goldstein


Q4(CBSE 2011): Who discovered neutrons?

CBSE Class 9 - Economics - Ch3 - Poverty As A Challenge

Poverty As A Challenge

Slum in Mumbai
credits: Marcus Fornell at Flickr

MCQs

Q1: Every _________ person in India is poor

(a) third
(b) fourth
(c) fifth
(d) tenth


Q2(CBSE 2011): In which of the following countries did poverty actually rise from 1981 to 2001?

(a) Sub-Saharan Africa
(b) India
(c) China
(d) Russia

CBSE Class7/8/9/10 - English Grammar (Reported Speech)

English Grammar (Reported Speech)

Q: Change the following into reported speech.

1. She asked, “Is there a shopping center near here?”
2. He says, “I am doing my duty.”
3. She said to me, "I am a good dancer."
4. Mohan said to me, "I clean the black shoes."
5. She said, "I went to the cinema yesterday."
6. She said, "I am not hungry now."
7. The owner said to the servant, “Will you come tomorrow?”

CBSE Class 7 - Maths - Comparing Quantities (NCERT Ex 8.3) - Profit and Loss and Simple Interest

Comparing Quantities

Profit & Loss and Simple Interest

Important points
Simple Interest
1. C.P. = Cost Price (Amount at which goods are purchased)
2. Sales Tax, VAT, cartage etc.are included in cost price.
3. S.P. = Selling Price (Amount at which goods are sold)
4. If SP > CP then it is Profit or Gain. Profit = SP - CP
5. If CP > SP then it is Loss. Loss = CP - SP
6. Profit of Loss per cent is always calculated on the cost price.

CBSE Class 10 - Science - CH 15 - Our Environment (Worksheet)

Our Environment (Worksheet)

ozone layer protects from harmful UV
credits:openclipart

Fill in the blanks

1. Our environment has four components: ________, _________, __________ and ____________.

2. Abnormal increase of the temperature in the environment due to the continuous accumulation of gaseous pollutants is known as __________ _____________.

3. An ecosystem consists of ________components comprising of living organisms and ________ components comprising of physical factors like temperature, rainfall, wind, soil and minerals.

4. __________ is one of the green house gas. It is used as solvent, refrigerants, aerosol spray propellants and in foam packaging.