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20 questions
Name the body parts of our body which help us in digestion of food.
Hormones
Enzymes
Stomach
Mouth
Which man-made material does not decompose by microbacterial reaction ?
Human flesh
Dead animal flesh
Bark of plant
Plastic
Give example of biodegradable substance from the following –
Shrub
Glass
Plastic
Polythene
Which of the following elements does not form ecosystem ?
Non-biotic components
Biocomponents
Plastic bags
All of the above
Which of the following is an example of man-made ecosystem ?
Aquarium
Sunlight
Wind
Water
Which of the following is the functional unit of the environment ?
Ecosystem
Nitrogen
Carbon
Oxygen
Which of the following is an example of producers ?
Plastic Pen
Plastic Cane
Polythene
Green Shrub
Which of the following is an example of herbivores animal ?
Cow
Snake
Lion
Tiger
Which of the following is not an example of non biotic-factors ?
Light
Shrub
Heat
Temperature
Which of the following is omni present ?
Lion
Fox
Hawk
Human being
How many atoms of oxygen are there in ozone ?
4
3
2
1
Which of the following appliances does not produce CFCs ?
Refrigerators
Fire extinguisher
Pressurized cane
Pencil
What is the nature of ozone ?
It is very poisonous
It is simple
It is fragrent
It produces purple smoke
Paper bag is made from non-biodegradable substances.
True
False
Environment is damaged by use of paper bag.
True
False
Ozone act as a poisonous gas at land level.
True
false
Farm/field is a natural ecosystem of crop.
True
false
The energy goes from autotrophs to heterotrophs and decomposers.
True
false
Ozone layer protects us from harmful ultra-violet radiations of the sun.
Ture
false
Environment is damaged by use of paper bag.
True
false
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