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Page 1 ENVIRONMENTAL STUDIES Time : 3 hrs. 200513 M.M. : 100 Q.1 Choose the correct option. (½×10=5) a) Calcium and iron are (i) proteins (ii) minerals (iii) vitamins b) You should take a tetanus vaccine if you (i) get a sprain (ii) get a cut (iii) get a heat stroke c) The tiny holes on leaves through which gases enter and leave are called (i) tomato (ii) cotyledons (iii) stomata d) Among the following, the one that has the most number of health workers is a (i) primary health subcentre (ii) primary health centre (iii) community health centre e) The teeth used for biting are called (i) canines (ii) incisors (iii) premolars f) The joint at the knee is a (i) ball-and-socket joint (ii) hinge joint (iii) involuntary joint g) Natural calamity is (i) wind (ii) ood (iii) rain h) An animal or a plant that does not exist any more is (i) endangered (ii) extinct (iii) expired i) Richter Scale is used to measure the strength of (i) Earthquakes (ii) Tsunamis (iii) Cyclones j) Malaria and dengue are spread by (i) cockroaches (ii) mosquitoes (iii) ies Q.2 Match the following. (1×5=5) a) Vitamin A Soil b) Abiotic component Water and food c) Wheat fuel d) Typhoid Spinach e) Petrol An annual plant Page 2 ENVIRONMENTAL STUDIES Time : 3 hrs. 200513 M.M. : 100 Q.1 Choose the correct option. (½×10=5) a) Calcium and iron are (i) proteins (ii) minerals (iii) vitamins b) You should take a tetanus vaccine if you (i) get a sprain (ii) get a cut (iii) get a heat stroke c) The tiny holes on leaves through which gases enter and leave are called (i) tomato (ii) cotyledons (iii) stomata d) Among the following, the one that has the most number of health workers is a (i) primary health subcentre (ii) primary health centre (iii) community health centre e) The teeth used for biting are called (i) canines (ii) incisors (iii) premolars f) The joint at the knee is a (i) ball-and-socket joint (ii) hinge joint (iii) involuntary joint g) Natural calamity is (i) wind (ii) ood (iii) rain h) An animal or a plant that does not exist any more is (i) endangered (ii) extinct (iii) expired i) Richter Scale is used to measure the strength of (i) Earthquakes (ii) Tsunamis (iii) Cyclones j) Malaria and dengue are spread by (i) cockroaches (ii) mosquitoes (iii) ies Q.2 Match the following. (1×5=5) a) Vitamin A Soil b) Abiotic component Water and food c) Wheat fuel d) Typhoid Spinach e) Petrol An annual plant Q.3 Write ‘True’ or ‘False’. (½×10=5) a) Lack of iodine in the body causes goitre. b) Unleaded petrol is one of the cleanest fuels. c) Carnivores do not depend on plants. d) There are 15 bones in the thumb and ngers of one hand. e) Red cross is an international organisation. f) Most of the food get digested in the large intestine. g) Tsunami is a huge wave that causes great damage when it reaches the seashore. h) Sugar cane is a perennial plant. i) Tuberculosis, typhoid and malaria are non communicable diseases. j) A person suering from a heatstroke should be given a hot drink. Q.4 Fill in the blanks. (1×10=10) a) A crack in a bone or the breaking of a bone is called __________. b) The spinal cord is a thick bunch of __________. c) Plants are called __________ because they make food. d) We need calcium for __________. e) A barrier built across a river is called a __________. f) Air enters the lungs through the __________. g) Among CNG, petrol and diesel, __________ is the cleanest fuel. h) The blood, sputum, stool and urine of patients are tested in a __________. i) __________ lay eggs in rotting garbage and faeces. j) The green colour of leaves is due to __________. Q.5 Name the following. (1×5=5) a) Pollution caused by too much noise. b) The muscles attached to our bones c) The tubes that carry blood from the heart to the rest of the body. d) A mass of rocks and earth sliding down a mountain. e) Diseases which do not spread from one person to another. Q.6 Dene the following. (any ve ) (2×5=10) a) Biotic components b) Drought c) Balanced diet d) Organ system e) First aid f) Respiration Page 3 ENVIRONMENTAL STUDIES Time : 3 hrs. 200513 M.M. : 100 Q.1 Choose the correct option. (½×10=5) a) Calcium and iron are (i) proteins (ii) minerals (iii) vitamins b) You should take a tetanus vaccine if you (i) get a sprain (ii) get a cut (iii) get a heat stroke c) The tiny holes on leaves through which gases enter and leave are called (i) tomato (ii) cotyledons (iii) stomata d) Among the following, the one that has the most number of health workers is a (i) primary health subcentre (ii) primary health centre (iii) community health centre e) The teeth used for biting are called (i) canines (ii) incisors (iii) premolars f) The joint at the knee is a (i) ball-and-socket joint (ii) hinge joint (iii) involuntary joint g) Natural calamity is (i) wind (ii) ood (iii) rain h) An animal or a plant that does not exist any more is (i) endangered (ii) extinct (iii) expired i) Richter Scale is used to measure the strength of (i) Earthquakes (ii) Tsunamis (iii) Cyclones j) Malaria and dengue are spread by (i) cockroaches (ii) mosquitoes (iii) ies Q.2 Match the following. (1×5=5) a) Vitamin A Soil b) Abiotic component Water and food c) Wheat fuel d) Typhoid Spinach e) Petrol An annual plant Q.3 Write ‘True’ or ‘False’. (½×10=5) a) Lack of iodine in the body causes goitre. b) Unleaded petrol is one of the cleanest fuels. c) Carnivores do not depend on plants. d) There are 15 bones in the thumb and ngers of one hand. e) Red cross is an international organisation. f) Most of the food get digested in the large intestine. g) Tsunami is a huge wave that causes great damage when it reaches the seashore. h) Sugar cane is a perennial plant. i) Tuberculosis, typhoid and malaria are non communicable diseases. j) A person suering from a heatstroke should be given a hot drink. Q.4 Fill in the blanks. (1×10=10) a) A crack in a bone or the breaking of a bone is called __________. b) The spinal cord is a thick bunch of __________. c) Plants are called __________ because they make food. d) We need calcium for __________. e) A barrier built across a river is called a __________. f) Air enters the lungs through the __________. g) Among CNG, petrol and diesel, __________ is the cleanest fuel. h) The blood, sputum, stool and urine of patients are tested in a __________. i) __________ lay eggs in rotting garbage and faeces. j) The green colour of leaves is due to __________. Q.5 Name the following. (1×5=5) a) Pollution caused by too much noise. b) The muscles attached to our bones c) The tubes that carry blood from the heart to the rest of the body. d) A mass of rocks and earth sliding down a mountain. e) Diseases which do not spread from one person to another. Q.6 Dene the following. (any ve ) (2×5=10) a) Biotic components b) Drought c) Balanced diet d) Organ system e) First aid f) Respiration Q.7 Answer the following questions in short. (2×10=20) a) What is a deciency disease? b) How can we stop mosquitoes from breeding? c) Why should we use unleaded fuel? d) What is the main function of owers? e) What is a joint? f) What do the kidneys do? g) Name two things that have a lot of carbohydrates. h) What does treatment mean? i) Mention one way in which animals help plants. j) Name two ood prone states of India. Q.8 Explain in few lines. (any 5) (4×5=20) a) What is a mobile health van? b) How do muscles make bone move? c) What is a ball-and-socket joint? d) How do decomposers help to maintain the environmental balance? e) What are blood types called? Why is it important to know a patient’s blood type? f) What happen to children who do not get enough proteins and carbohydrates? g) How does vaccination help? Name three diseases against which we can get vaccinated. Q.9 Diagrammatic questions. (2×5=10) A) Draw a labelled diagram. (any one) (i) The Respiratory System (ii) The Urinary System B) (i) Label the following diagram from (a)-(h) as directed. (No need to draw the diagram). (ii) Where does the process of digestion start from? Practical Skills. (10)Read More
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