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Our Environment - 01
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Mr. Aseet Srivastava, (M.Sc., B.Ed.
gurucoolclasseslko@gmail.com
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Whatsapp No. 7355098185
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Q.1. Which of the following constitutes a food chain ?
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1 point
Grass, Goat and Human
Grass, Fish and Goat
Grass, Wheat and Mango
Goat, Cow and Elephant
Q.2. In a food chain, the initial organism is usually :
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1 point
herbivore
saprophytic
parasitic
photosynthetic
Q.3. Which of the following is an artificial ecosystem ?
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1 point
crop field
lake
forest
pond
Q.4. Disposable plastic plates should not be used because :
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1 point
they are made of light weight materials
they are made of non-biodegradable materials
they are made of biodegradable materials
they are made of toxic materials
Q.5. In a food chain, the third trophic level is always occupied by :
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1 point
producers
herbivores
decomposers
carnivores
Q.6. Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as :
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1 point
biomagnification
pollution
accumulation
eutrophication
Q.7. If a grasshopper is eaten by a frog, then the energy transfer will be from :
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1 point
secondary consumer to tertiary consumer
producer to decomposer
primary consumer to secondary consumer
producer to primary consumer
Q.8. An ecosystem includes :
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1 point
all living organisms
all living organisms and input of sun’s energy
both living organisms and non-living objects
non-living objects
Q.9. The decomposers in an ecosystem :
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1 point
convert inorganic material to simpler forms
do not break down organic compounds
convert organic material to inorganic forms
convert inorganic material into organic compounds
Q.10. Organisms which synthesise carbohydrates from inorganic compounds by using radiant energy are called :
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1 point
producers
herbivores
carnivores
decomposers
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