NCERT 6 TH AND 7 TH CLASS QUIZ FOR EXAM ASPIRANT
ANSWER THE FALLOWING QUESTION(1-5)
(1) The planet known as the “Earth’s Twin” is
(2) Which is the third nearest planet to the sun ?
(3) All the planets move around the sun in a
(a) Circular path
(b) Rectangular path
(c) Elongated path
(4) The Pole Star indicates the direction to the
(5) Asteroids are found between the orbits of
(a) Saturn and Jupiter
(b) Mars and Jupiter
(c) The Earth and Mars
Venus is considered as ‘Earth’s-twin’ because its size and shape are very much similar to that of the earth.Venus is the second planet from the Sun, orbiting it every 224.7 Earth days.
Mercury is nearest to the sun. It takes only about 88 days to complete one round along its orbit.
All the eight planets of the solar system move around the sun in fixed paths. These paths are elongated. They are called orbits.
In ancient times, people used to determine directions during the night with the help of stars. The North star
indicates the north direction. It is also called the Pole Star. It always remains in the same position in the sky.
Apart from the stars, planets and satellites, there are numerous tiny bodies which also move around the sun. These bodies are called asteroids. They are found between the orbits of Mars and Jupiter
ANSWER THE FALLOWING QUESTION(6-10)
(6) The value of the prime meridian is
(7) The frigid zone lies near
(a) the Poles
(b) the Equator
(c) the Tropic of Cancer
(8) The total number of longitudes are
(9) The Antarctic circle is located in
(a) the Northern hemisphere
(b) the Southern hemisphere
(c) the Eastern hemisphere
(10) The movement of the earth around the sun is known as
Its value is 0° longitude and from it we count 180° eastward as well as 180° westward. Hence, all countries decided that the count should begin from the Prime Meridian which passed through Greenwich, where the British Royal Observatory is located in Britain.
Temperate Zones. Areas lying between the Arctic Circle and the North Pole in the Northern Hemisphere and the Antarctic Circle and the South Pole in the Southern Hemisphere, are very cold. It is because here the sun does not rise much above the horizon. Therefore, its rays are always slanting and provide less heat. These are, therefore, called Frigid Zones (very cold).
The total number of longitudes are 360
Antarctic Circle in the Southern Hemisphere.Antarctic Circle, parallel, or line of latitude around the Earth, at 66°30′ S.
the earth has two types of motions,namely rotation and revolution. Rotation is the movement of the earth on its axis. The movement of the earth around the sun in a fixed path or orbit is called Revolution.
ANSWER THE FALLOWING QUESTION(11-15)
(11) Cycle of the seasons is caused due to
(12) The mountain range that separates Europe from Asia is
(a) the Andes
(b) the Himalayas
(c) the Urals
(13) The continent of North America is linked to South America by
(a) an Isthmus
(b) a Strait
(c) a Canal
(14) The major constituent of atmosphere by per cent is
(c) Carbon dioxide
(15) The domain of the earth consisting of solid rocks is
(a) the Atmosphere
(b) the Hydrosphere
(c) the Lithosphere
A year is usually divided into summer, winter, spring and autumn seasons. Seasons change due to the change in the position of the earth around the sun.The changes in the seasons because of the revolution of the earth.
Asia is the largest continent. It covers about one third of the total land area of the earth.The Tropic of Cancer passes through this continent. Asia is separated from Europe by the Ural mountains on the west
North America is the third largest continent of the world. It is linked to South America by a very narrow strip of land called the Isthmus of Panama.
The atmosphere is composed mainly of nitrogen and oxygen, which make up about 99 per cent of clean,dry air. Nitrogen 78 per cent, oxygen 21 per cent and other gases like carbondioxide, argon and others comprise 1 per cent by volume. Oxygen is the breath of life while nitrogen helps in the growth of living organisms. Carbon dioxide, though present in minute amount, is important as it absorbs heat radiated by the earth, thereby keeping the planet warm. It is also essential for the growth of plants.
The solid portion of the earth is called the Lithosphere.It comprises the rocks of the earth’s crust and the thin layers of soil that contain nutrient elements which sustain organisms.
ANSWER THE FALLOWING QUESTION(16-20)
(16) Which is the largest continent?
(17) The deepest point on the Ocean is
(a) Tonga Trench
(b) Philippine trench
(c) Java trench
(d) Mariana Trench
(18) The narrow contact zone of land, water and air that supports life
(19) The continents of Europe and Asia together are known as
(20) The highest mountain peak on the earth is
(a) K2 (Godwin Austen)
(d) Nanga Parbat
Asia is the largest continent. It covers about one third of the total land area of the earth. Australia is the smallest continent
The Pacific Ocean is the largest ocean. It is spread over one-third of the earth. Mariana Trench, the deepest
part of the earth, lies in the Pacific Ocean.
The biosphere is the narrow zone of contact between the land, water and air. It is in this zone that life, that
is unique to this planet, exists. There are several species of organisms that vary in size from microbes and bacteria to huge mammals. All the living organisms including humans are linked to each other and to the biosphere for survival.The organisms in the biosphere may broadly be divided into the plant kingdom and the animal kingdom.
The combined landmass of Europe and Asia is called the Eurasia (Europe + Asia).
The highest mountain peak Mt. Everest is 8,848 metres above the sea level.Its border of Nepal to the south and Tibet on the north.
ANSWER THE FALLOWING QUESTION(21-25)
(21) Glaciers are found in
(a) the mountains
(b) the plains
(c) the plateaus
(22) The Deccan Plateau is located in
(23) The river Yangtze flows in
(a) South America
(24) An important mountain range of Europe is
(a) the Andes
(b) the Alps
(c) the Rockies
(25) The Himalayas and the Alps are examples of which types of mountains.
(a) Block Mountains
(b) Fold Mountains
(c) Volcanic Mountains
(d) Dome Mountain
In some mountains, there are permanently frozen rivers of ice. They are called glaciers. Because of harsh climate, less people live in the mountain areas. Since the slopes are steep, less land is available for farming.
A plateau is an elevated flat land. It is a flat-topped table land standing above the surrounding area. The Deccan plateau in India is one of the oldest plateaus.The East African Plateau in Kenya,Tanzania and Uganda and the Western plateau of Australia are other examples. The Tibet plateau is the highest plateau in the world with a height of 4,000 to 6,000 metres above the mean sea level.Plateaus are very useful because they are rich in mineral deposits. As a result, many of the mining areas in the world are located in the plateau areas.
the Yangtze flows in China. Yangtze is the longest river in Asia and the third-longest in the world.
Generally, plains are very fertile. Construction of transport network is easy.Thus, these plains are very thickly-populated regions of the world. Some of the largest plains made by the rivers are found in Asia and North America. For example,in Asia, these plains are formed by the Ganga and the Brahmaputra in India and the Yangtze in China.
The Alps are the highest and most extensive mountain range system that lies entirely in Europe.The Himalayan Mountains and the Alps are young fold mountains with rugged relief and high conical peaks. The Aravali range in India is one of the oldest fold mountain systems in the world.
The Himalayan Mountains are young fold mountains. The Aravali range in India is one of the oldest fold mountain systems in the world. The Himalayas, or Himalaya form a mountain range in Asia separating the plains of the Indian subcontinent from the Tibetan Plateau. The Himalayan range has many of the Earth's highest peaks, including the highest, Mount Everest.