Tick the correct answer.
(a) The planet known as the “Earth’s Twin” is
(i) Jupiter (ii) Saturn (iii) Venus
(b) Which is the third nearest planet to the sun ?
(i) Venus (ii) Earth (iii) Mercury
(c) All the planets move around the sun in a
(i) Circular path (ii) Rectangular path (iii) Elongated path
(d) The Pole Star indicates the direction to the
(i) South (ii) North (iii) East
(e) Asteroids are found between the orbits of
(i) Saturn and Jupiter (ii) Mars and Jupiter (iii) The Earth and Mars
(a) Venus
Venus is called Earth’s Twin because it is similar to the earth in shape and size. Venus is also called sister of Earth. Both Earth and Venus are rocky planets. They effectively have same density and are nearly having same mass. They both have significant atmospheres, surrounding their surfaces. Venus’s radius is only a few hundred kilometers smaller than Earth.
(b) Earth
Earth is the third nearest planet to the sun and is about 150 million km away from the sun. Revolution of 365 days is taken by the earth and 24 hours to rotate around sun on its axis. Earth’s gravity is interconnected with other bodies in space, especially from the sun and the moon. The exact distance between Earth and the sun varies with its position in its elliptical orbit.
(c) Elliptical path
All the planets go around the sun in an elliptical path or an orbit. Elliptical shape does not seems to be a perfect circle but seems like an oval shape.
(d) North
Pole star is also known as North Star. The North Star always indicates the North direction. In ancient times, people used to determine directions during night with the help of stars. The position of the pole star always remains same in the night sky. We can locate the position of pole star with the help of Saptarishi. If an imaginary line is drawn by joining the pointer star and extended further, it will point to the pole star.
(e) Mars and Jupiter
Asteroids are numerous tiny bodies which also move around the sun. Asteroid forms a belt between the orbits of Mars and Jupiter which separates inner and outer planets. The belt formed by asteroids is known as asteroid belt. The largest asteroid is Ceres and is the first asteroid to be spotted. The brightest asteroid is Vesta and is the only asteroid that can be seen with the naked eyes. The Trojans are two small groups of asteroids that circle the sun on the same orbit as Jupiter.
Fill in the blanks.
(a) A group of ________ forming various patterns is called a ________.
(b) A huge system of stars is called________.
(c) ________is the closest celestial body to our earth.
(d) ________is the third nearest planet to the sun.
(e) Planets do not have their own________ and ___________________.
Answer the following questions briefly.
(a) How does a planet differ from a star?
(b) What is meant by the ‘Solar System’?
(c) Name all the planets according to their distance from the sun.
(d) Why is the Earth called a unique planet?
(e) Why do we see only one side of the moon always?
(f) What is the Universe?
Answer the following questions briefly.
(a) What is the true shape of the earth?
(b) What is a globe?
(c) What is the latitudinal value of the Tropic of Cancer?
(d) What are the three heat zones of the Earth?
(e) What are parallels of latitude and meridians of longitude?
(f) Why does the torrid zone receive maximum amount of heat?
(g) Why is it 5.30 p.m. in India and 12.00 noon in London?
Answer the following questions briefly.
(a) What is the angle of inclination of the earth’s axis with its orbital plane?
(b) Define rotation and revolution.
(c) What is a leap year?
(d) Differentiate between the Summer and Winter Solstice.
(e) What is an equinox?
(f) Why does the Southern Hemisphere experience Winter and Summer Solstice in different times than that of the Northern Hemisphere?
(g) Why do the poles experience about six months day and six months night?
Answer the following questions briefly.
(a) What are the three components of a map?
(b) What are the four cardinal directions?
(c) What do you mean by the term ‘the scale of the map’?
(d) How are maps more helpful than a globe?
(e) Distinguish between a map and a plan.
(f) Which map provides detailed information?
(g) How do symbols help in reading maps?
Answer the following questions briefly.
(a) What are the four major domains of the earth?
(b) Name the major continents of the earth.
(c) Name the two continents that lie entirely in the Southern Hemisphere.
(d) Name the different layers of atmosphere.
(e) Why is the earth called the ‘blue planet’?
(f) Why is the Northern Hemisphere called the Land Hemisphere?
(g) Why is the Biosphere important for living organisms?
Answer the following questions briefly.
(a) What are the major landforms?
(b) What is the difference between a mountain and a plateau?
(c) What are the different types of mountains?
(d) How are mountains useful to man?
(e) How are plains formed?
(f) Why are the river plains thickly populated?
(g) Why are mountains thinly populated?
Answer the following questions briefly.
(a) Name the major physical divisions of India.
(b) India shares its land boundaries with seven countries. Name them.
(c) Which two major rivers fall into the Arabian Sea?
(d) Name the delta formed by the Ganga and the Brahmaputra.
(e) How many States and Union Territories are there in India? Which states have a common capital?
(f) Why do a large number of people live in the Northern plains?
(g) Why is Lakshadweep known as a coral island?
Answer the following questions briefly.
(a) Which winds bring rainfall in India? Why is it so important?
(b) Name the different seasons in India.
(c) What is natural vegetation?
Tick the correct answers.
(a) The value of the prime meridian is
(i) 90° (ii) 0° (iii) 60°
(b) The frigid zone lies near
(i) the Poles (ii) the Equator (iii) the Tropic of Cancer
(c) The total number of longitudes are
(i) 360 (ii) 180 (iii) 90
(d) The Antarctic circle is located in
(i) the Northern hemisphere
(ii) the Southern hemisphere
(iii) the Eastern hemisphere
(e) Grid is a network of
(i) parallels of latitudes and merdians of longitudes
(ii) the Tropic of Cancer and the Tropic of Capricorn
(iii) the North Pole and the South Pole
Tick the correct answers.
(a) The movement of the earth around the sun is known as
(i) Rotation (ii) Revolution (iii) Inclination
(b) Direct rays of the sun fall on the equator on
(i) 21 March (ii) 21 June (iii) 22 December
(c) Christmas is celebrated in summer in
(i) Japan (ii) India (iii) Australia
(d) Cycle of the seasons is caused due to
(i) Rotation (ii) Revolution (iii) Gravitation
Tick the correct answers.
(a) Maps showing distribution of forests are
(i) Physical map (ii) Thematic Map (iii) Political map
(b) The blue colour is used for showing
(i) Water bodies (ii) Mountains (iii) Plains
(c) A compass is used –
(i) To show symbols (ii) To find the main direction (iii) To measure distance
(d) A scale is necessary
(i) For a map (ii) For a sketch (iii) For symbols
Answer the following questions briefly.
(a) What is the true shape of the earth?
(b) What is a globe?
(c) What is the latitudinal value of the Tropic of Cancer?
(d) What are the three heat zones of the Earth?
(e) What are parallels of latitude and meridians of longitude?
(f) Why does the torrid zone receive maximum amount of heat?
(g) Why is it 5.30 p.m. in India and 12.00 noon in London?
Tick the correct answers.
(a) The value of the prime meridian is
(i) 90° (ii) 0° (iii) 60°
(b) The frigid zone lies near
(i) the Poles (ii) the Equator (iii) the Tropic of Cancer
(c) The total number of longitudes are
(i) 360 (ii) 180 (iii) 90
(d) The Antarctic circle is located in
(i) the Northern hemisphere
(ii) the Southern hemisphere
(iii) the Eastern hemisphere
(e) Grid is a network of
(i) parallels of latitudes and merdians of longitudes
(ii) the Tropic of Cancer and the Tropic of Capricorn
(iii) the North Pole and the South Pole
Answer the following questions briefly.
(a) What are the three components of a map?
(b) What are the four cardinal directions?
(c) What do you mean by the term ‘the scale of the map’?
(d) How are maps more helpful than a globe?
(e) Distinguish between a map and a plan.
(f) Which map provides detailed information?
(g) How do symbols help in reading maps?
Fill in the blanks.
(a) India has an area of about ________________.
(b) The Greater Himalayas are also known as_________________.
(c) The largest state in India in terms of area is__________________.
(d) The river Narmada falls into the __________________ sea.
(e) The latitude that runs almost halfway through India is ___________.
Tick the correct answers.
(a) The southernmost Himalayas are known as
(i) Shiwaliks (ii) Himadri (iii) Himachal
(b) Sahyadris is also known as
(i) Aravali (ii) Western Ghats (iii) Himadri
(c) The Palk Strait lies between the countries
(i) Sri Lanka and Maldives
(ii) India and Sri Lanka
(iii) India and Maldives
(d) The Indian islands in the Arabian Sea are known as
(i) Andaman and Nicobar Islands
(ii) Lakshadweep Islands
(iii) Maldives
(e) The oldest mountain range in India is the
(i) Aravali hills (ii) Western ghats (iii) Himalayas
Fill in the blanks.
1. A ___________ is an unbroken flat or a low-level land.
2. The Himalayas and the Alps are examples of _______________types of mountains.
3. _____________ areas are rich in mineral deposits.
4. The _________________ is a line of mountains.
5. The ____________areas are most productive for farming.
Fill in the blanks.
(a) The deepest point on the earth is _____________ in the Pacific Ocean.
(b) The _____________ Ocean is named after a country.
(c) The _____________ is a narrow contact zone of land, water and air that supports life.
(d) The continents of Europe and Asia together are known as _____________.
(e) The highest mountain peak on the earth is _____________.
Tick the correct answers.
(a) Maps showing distribution of forests are
(i) Physical map (ii) Thematic Map (iii) Political map
(b) The blue colour is used for showing
(i) Water bodies (ii) Mountains (iii) Plains
(c) A compass is used –
(i) To show symbols (ii) To find the main direction (iii) To measure distance
(d) A scale is necessary
(i) For a map (ii) For a sketch (iii) For symbols
Tick the correct answers.
(a) The mountains differ from the hills in terms of
(i) elevation (ii) slope (iii) aspect
(b) Glaciers are found in
(i) the mountains (ii) the plains (iii) the plateaus
(c) The Deccan Plateau is located in
(i) Kenya (ii) Australia (iii) India
(d) The river Yangtze flows in
(i) South America (ii) Australia (iii) China
(e) An important mountain range of Europe is
(i) the Andes (ii) the Alps (iii) the Rockies
Fill in the blanks.
(a) The Tropic of Capricorn is located at _________________.
(b) The Standard Meridian of India is ____________________.
(c) The 0° Meridian is also known as ____________________.
(d) The distance between the longitudes decreases towards___________.
(e) The Arctic Circle is located in the ____________ hemisphere.