Environmental Studies Shelter TS TET MCQ

25 The smoke from vehicles and factories contain ..... 1. carbon monoxide 2. carbon dioxide 3. a and b 4. none

24 An agarbathi produces .... 1. smoke 2. fragrance 3. smoke and fragrance 4. none

23 Organisms do not produce energy in the absence of ..... 1. air 2. carbondioxide 3. hydrogen 4. none

22 The seeds germinate and grow into plants by the presence of ..... 1. light only 2. light and soil only 3. soil, light, water and air only 4. none

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21 We should be careful with fire and ...... 1. water 2. doctor 3. hot objects 4. none

20 When accidents occur in cities dial ...... 1. 104 2. 108 3. 111 4. none

19 When electricity passes through our body, we get ..... 1. short circuit 2. dazzles 3. electric shock 4. none

18 Pure blood contains ...... 1. carbon dioxide 2. hydrogen 3. oxygen 4. nitrogen

17 Changing lime water into a milky white solution is the property of ....... 1. oxygen 2. carbon dioxide 3. oxygen 4. nitrogen

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