Tumahre Liye

CHAPTER- 8 Land and the people. Something to know. A. Tick the correct option. 1. Which one of the following is a feature of Sahara Desert. It is the world’s largest and the hottest desert. 2. Which river passes through the world’s largest rainforests , located in South America. Amazon. 3. The Praries are also known as the ‘Granaries of the World’ due to the practice of- Extensive farming. 4. In which continent is the Kalahari Desert located. Africa. 5. Rice, jute and tea are important crops of- Ganga- Brahmaputra basin . B. Fill in the blanks. 1. Sand dunes     are the common features formed by winds in the hot deserts. 2. The opening of     Srinagar roadways    has made Ladakah a big tourist centre . 3. The praries produce huge surplus of      wind     . 4. Nile     is the world’s longest river. 5. Ganga-yamuna and Brahmaputra      is known...

                             Chapter -7 Human  Environment Inside.Questions 1.How many types of environment ? Ans- Two, (i) Natural environment (ii) Man-made environment. 2.What is called cluster group of houses? Ans- Settlement. 3.What is the primary residence of human society? Ans- Settlement. 4. Which type of life does early man lived? Ans- Nomadic life. 5. Human beings learnt the art of architecture and farming in which age? Ans- Post stone age. 6. What is called the act of moving people or goods from one place to another called? Ans- Transportation 7. What are the main factors responsible for permanent  Settlement? Ans-(i) Availability of Water (ii)Relief features (iii) Special sites 8.Write the modes of transportation?ans-i) Roadways i) Railways iii) waterways iv) Airways v) Pipelines. 9. Which mode of transportation is called the'Lifeline of a country'? Ans- Railways. 10...

Chapter 5. Water around us. Keywords. Fishing ground :   An area    in the oceans and seas where fish are in plenty and fishing is usually good.   Plankton: microscopic organisms that drift in the upper water of the sea.   Most marine creatures depend upon them directly or indirectly for food. Plankton rich zones in the ocean make good fishing grounds.   Stream flow : a portion of run off that enters the river valleys to move towards the oceans.   Surface run off : the part of total precipitation that flows over the ground.   Transpiration : the transfer of water vapour to the air from plants.   Page 37 Something to Know A. Tick ( ) the correct option.   1. The water cycle is – (a) the continuous movement of water.   (b) passage of water through a house.   (c) the life of an organism in water.   (d) a static system 2. The three states of water are (a) cloud, rain, river (b) so...

                               Chapter 4.Geography         Chapter 4.Geography. Air Around Us Keywords:- 1. Global Warming : The gradual increase in the overall temperature of the earth’s atmosphere. 2. Humidity : Amount of water vapors in the atmosphere. 3. Monsoons : Seasonal reversal of the wind direction according to the change in season. 4. Photosynthesis : Plants absorb carbon dioxide in the presence of sunlight and turn that energy into food. Something To Do:- A. Tick the correct option. 1. In normal lapse rate, temperature decreases at the rate of 1 degree Celsius with every- Ans :-   165m asend. 2. Which layer is safe for flying aircrafts? Ans :-   Stratosphere. 3. The role of ion-particles in the ionosphere is to- Ans :-   Enable wireless communication. 4. Which one of the following is the main cause of global warming...

Chapter 3,Geography    3. The Surface and Interior of the earth. Keywords Geologist : a scientist who studies geology ( study of earth). mean  Sea level : the level of the ocean surface between the level of mean high tide and low tide. Seismic waves : a wave of energy generated by an earthquake or other earth vibrations that travel within the earth or along it's surface. Something to know A. Tick the correct option. 1. Living organisms do not survive inside the earth due to - Ans- (a) high temperature 2. Earthquakes and volcanoes are caused by- Ans- (a) internal disturbance 3. Respective layers of the earth from top to bottom are- Ans- (b) crust, mantle, core  4.The full form of SIMA is- Ans- (b) silica and magnesium 5. The original rock from which Gneiss formed is- Ans- (c) granite B. Fill in the blanks. 1. Earth was formed about 4.6 billion years ago. 2. The behaviour of scismic  waves tells us about the Earth's interior. 3. The thicknes...