Revision 1

3.2.16 Revision of Question/Answers

Q1. What is the advantage of a long coastline?

Q2. Why are so many tourists attaracted to Goa?

Q3. How is it that so many people in Puducherry know french?

Q4. Why are Lakshadweep Islands referred to as 'coral islands'?

Q5. What do you mean by 'natural vegetation' of an area?

Q6. Which is the famous dance form of Odissa?

Q7. Name the salt water lakes, which get cut off from the sea?

Q8. Name four useful products we get from forests.

Q9. List four ways in which forests are useful to us.

Q10. What was chipko movement?

Q11. Why can't sea water be used for drinking and irrigation?

Q12. What problems occur in India beacuse of rains?

Q13. Name two places each in India where the following are located:

a) Iron and Steel Plants b) Petroleum Refineries

Q14. Name the places where the following are mainly found in India. Give their important uses:-a) Coal b) Petroleum.

Chapter 13- “ Our Mineral Wealth”

29.1.2016 Chapter 13- “ Our Mineral Wealth”

Q1. Name two places each in India where the following are located:

Ans1. a) IRON & STEEL PLANTS:-

Iron ore is found in large quantities in Bihar, Jharkhand, Orissa, Madhya Pradesh, Chattisgarh, Goa ,Karnataka and Andhra Pradesh.

Iron and steel plants are located in Jamshedpur and Bokaro in Jharkhand, Bhilai in Madhya Pradesh, and Durgapur in West Bengal.

b) PETROLEUM REFINERIES:-

In India, petroleum refineries are in Mumbai, Cochin, Mathura, Barauni ,Haldia, Vadinagar and Jamnagar in Gujarat.

Q2. Name the places where the following are mainly found in India. Give their important uses:

Ans2. a) COAL:-

It is mainly found in Madhya Pradesh, Chhattisgarh and West Bengal.
USES:- 1. It is an important fuel, and provides us with energy.
2. It is used to generate electricity.
3. It is used as domestic fuel.

b) PETROLEUM:-

It is mainly found in Assam, Gujarat, under the sea in Bombay High, near Mumbai, Rajasthan, Krishna-Godavari Basin

USES:- 1. It is an important source of energy.

2.We get fuels such petrol, deisel, kerosene oil etc. from petroleum. 
3.It is used to make lubricants, plastics and cosmetics.

Q3. Why is it important to conserve our mineral resources?

Ans3. Our mineral resources will get over very soon. So they need to be used judiciously and not wasted.

Chapter 18- " People who made a difference"

RELIGION                 FOUNDER                        HOLY BOOK
1. Christianity           Jesus Christ                       Bible
2. Jainism                  Lord Mahavira                 
3. Buddhism              Gautama Buddha
4. Islam                     Prophet Mohammad         Koran
5. Zoroastrianism     Zoroaster                          Zend Avesta
6. Sikhism                 Guru Nanak Dev               Guru Granth Sahib
7. Hinduism                                                         Bhagwad Gita

Ancient Scientists and Mathematicians:-
Aryabhatta, CV Raman, JC Bose, Homi Bhabha, APJ Abdul Kalam, Vikram Sarabhai, S Chandrashekhar

Varahamihira was famous astronomer.
Charaka was famous physician.
Sushruta was famous Surgeon.

Famous ancient kings:- Emperor Akbar, Emperor Ashoka, Raja Krishnadeva Raya

Social Reformers:- Kabir, Raja Ram Mohan Roy, Ramabhai Ranade.

Chapter 12- “ Our Water Wealth”

11.12.2015 Chapter 12- “ Our Water Wealth”

Q1. Why cannot sea water be used for drinking or irrigation?

Ans1. Sea water cannot be used for drinking or irrigation as it contains salt.

Q2. What problems occur in India because of rains occuring only in the monsoon months?

Ans2. Rivers are full of water during the monsoon months. Therefore, there are often floods during these months. The extra water simply flows into the sea and is not stored. On the other hand, many rivers dry up during the summer months because of shortage of water.

Q3. What is hydroelectricity?

Ans3. Electricity generated from the force of water is called HYDROELECTRICITY.

Chapter 11- “ Forests of India”

7.12.2015 Chapter 11- “ Forests of India”

Q1. What do you mean by 'natural vegetation' of an area?

Ans1. The kinds of trees and other plants that grow naturally in a region depending on the climate and soil of the place are called the natural vegetation of an area.

Q2. Name four useful products we get from forests.

Ans2. We get firewood, wood pulp, rubber and medicines from the forest.

Q3. Other than providing useful products, list three other ways in which forests are useful to us.

Ans3. Forests are useful to us in many ways:-

a) They provide shelter to wild animals.

b) They prevent soil erosion.

c)They supply oxygen to air.

Q4. What was Chipko movement?

Ans4. In 1974, villagers in the hills of Uttrakhand took steps to prevent deforestation in a unique way. They prevented cutting down of trees by putting their arms around the trees and refusing to move. This was known as the Chipko Movement.

revision ( ch-8,16,21)

26.11.2015 Revision( Ch-8, 16, 21)

Q1. What are the main components of environment?

Q2. Diffrentiate between weather and climate.

Q3. Name the different ways of sending messages through post offices.

Q4. What are three main factors on which the climate of a place depends?

Q5. How are trees useful to the environment?

Q6. Fill in the blanks:-

a) The fumes released by factories pollutes the environment.

b) The winter season lasts from October to february or march.

c)Hot and dry winds that carry dust and sand are called loo.

d)The farther the place from the Equator the cooler the place is.

e) In olden days, people sent messages through pigeons.

f) Telivison can be easily watched and live programs are shown through satellites.

Chapter 7 - “ The Coastal Plains and Islands”

16.11.2015 Chapter 7 - “ The Coastal Plains and Islands”

Q1. What is the advantage of a long coastline?

Ans1. A long coastline would be advantageous to the country as it can use it to transport large quantities of goods into and out of the country. It also encourages fishing and tourism.

Q2. Why are so many tourists attracted to Goa?

Ans2. Tourists are attracted to Goa because of its beautiful beaches and churches.

Q3. Why are Lakshadweep Islands refered to as 'coral islands'?

Ans3. Many Lakshadweep islands are made up of deposits of the skeltons of a sea animal called CORAL. Such islands are called CORAL ISLANDS.

Q4. How is it that so many people in Puducherry know French?

Ans4. At one time the French ruled Puducherry. So, most of the people speak French.