Habitat and Adaptation Class 6 MCQ

The gas used for killing bacteria in water is 1. Nitrogen 2. Carbon dioxide 3. Chlorine 4. Helium

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Catalytic converters are used in 1. Automobiles 2. Windmills 3. Poultry farms 4. Dairy farms

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Oceans act as sinks for 1. Carbon monoxide 2. Carbon dioxide 3. Nitrogen 4. Oxygen

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Trimethyl lead is formed by burning 1. Wood 2. Kerosene 3. Petrol 4. Coal

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The pollutant present in coal mine exhaust is 1. Carbon monoxide 2. Carbon dioxide 3. Water vapour 4. Ash

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Zooplankton comes under 1. Producers 2. Primary consumers 3. Secondary consumers 4. Tertiary consumers

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In a pond ecosystem, diatoms are 1. Decomposers 2. Primary producers 3. Primary consumers 4. Secondary consumers

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Trophic level in an ecosystem represents the 1. Water level 2. Energy level 3. Salt level 4. Oxygen level

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Which one of the following acts as a primary as well as a secondary consumer in the forest ecosystem? 1. Rabbit 2. Deer 3. Lion 4. Man

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