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Class 10 Science Chapter Our Environment - Part 2

Class 10 Science Chapter Our Environment - Ecosystem and Its Components, Food Chains, Webs, and Energy Flow, Human Impact on the Environment. Notes, Test Series, Previous years question papers and man...

Class 10th
35 Questions
0.00 Marks
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Q1 • MCQ • 1 marks
Which organisms prepare their own food?
Q3 • MCQ • 1 marks
Which of the following is a primary consumer?
Q4 • MCQ • 1 marks
The first trophic level is occupied by:
Q5 • MCQ • 1 marks
Herbivores belong to which trophic level?
Q6 • MCQ • 1 marks
Carnivores generally occupy:
Q7 • MCQ • 1 marks
Energy enters the ecosystem through:
Q8 • MCQ • 1 marks
The process of transfer of food energy is called:
Q9 • MCQ • 1 marks
Which is the correct food chain?
Q10 • MCQ • 1 marks
The interconnected food chains form:
Q11 • MCQ • 1 marks
Which of the following is a biotic component of the environment?
Q12 • MCQ • 1 marks
Food webs increase:
Q13 • MCQ • 1 marks
Which organism is both producer and autotroph?
Q14 • MCQ • 1 marks
According to the 10% law, only about ____ of energy is transferred to the next trophic level
Q15 • MCQ • 1 marks
The 10% law was proposed by:
Q16 • MCQ • 1 marks
Which organism is known as a producer?
Q17 • MCQ • 1 marks
Most of the energy is lost as:
Q18 • MCQ • 1 marks
Which trophic level receives the least energy?
Q19 • MCQ • 1 marks
Which process returns nutrients to the soil?
Q20 • MCQ • 1 marks
Which microorganism is commonly involved in decomposition?
Q21 • MCQ • 1 marks
Which is a biodegradable substance?
Q22 • MCQ • 1 marks
Which of the following helps maintain ecological balance?
Q23 • MCQ • 1 marks
Which is non-biodegradable?
Q24 • MCQ • 1 marks
Which waste decomposes naturally?
Q25 • MCQ • 1 marks
Non-biodegradable substances:
Q26 • MCQ • 1 marks
Which pollutant enters the food chain and accumulates?
Q27 • MCQ • 1 marks
Biological magnification refers to:
Q28 • MCQ • 1 marks
Biomagnification mainly affects:
Q29 • MCQ • 1 marks
Decomposers help in:
Q30 • MCQ • 1 marks
Which chemical is famous for causing biomagnification?
Q31 • MCQ • 1 marks
Which of the following is an ecosystem?
Q32 • MCQ • 1 marks
An ecosystem consists of:
Q33 • MCQ • 1 marks
Which is an abiotic component?
Q34 • MCQ • 1 marks
Which of these is not a producer?
Q35 • MCQ • 1 marks
The ultimate source of energy for all ecosystems is:
Q36 • MCQ • 1 marks
Food chains generally begin with:

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