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Our Environment Mock Tests

20 questions available

Our Environment Mock Test 1

Questions: 20

नमूना प्रश्न

Class 10 Science
In a food chain consisting of grass, grasshopper, frog, and snake, if the energy available to grasshopper is 1000 J, the energy available to the snake according to the 10% law is:
A 10 J
B 100 J
C 0.1 J
D 1 J
Class 10 Science
Which of the following substances is biodegradable?
A Glass
B Aluminium foil
C Paper
D Synthetic fibre
Class 10 Science
Which of the following is a non-biodegradable waste?
A Paper
B Plastic
C Food waste
D Wood
Class 10 Science
The solar energy is stored in the sun in the form of:
A Chemical energy by the decomposition of water into hydrogen and oxygen
B Chemical energy by the conversion of carbon dioxide and water into carbohydrates
C Nuclear energy by nuclear fusion of hydrogen into helium
D Nuclear energy by nuclear fission of uranium
Class 10 Science
In a food chain, if the energy available at the producer level (grass) is 5000 joules, what is the approximate energy available to the secondary consumer (frog)?
A 500 J
B 50 J
C 5 J
D 5000 J
Class 10 Science
Which of the following is an example of abiotic component of an ecosystem?
A Trees
B Fungi
C Temperature
D Bacteria
Class 10 Science
Which of the following statements about ozone is correct?
A Ozone is found mainly in the troposphere (lower atmosphere)
B Ozone absorbs ultraviolet radiation emitted by the sun
C Ozone is highly toxic and has no role in the atmosphere
D Ozone depletion is caused mainly by carbon dioxide
Class 10 Science
Which of the following is a biodegradable waste?
A Glass bottles
B Polythene bags
C Vegetable peels
D Aluminium cans

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