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.