This page covers Agniveer Army GD Ecosystems & Environment with complete concept notes, 12 graded practice MCQs, key points and exam-specific tips. Free to study.
Which of the following best describes the role of decomposers in an ecosystem?
Practice 2easy
In a food chain, which organism is typically at the top as the tertiary consumer?
Practice 3easy
What percentage of energy is transferred from one trophic level to the next in an ecosystem?
Practice 4easy
Which of the following is an example of a biotic component in an ecosystem?
Practice 5medium
In a food chain, what percentage of energy is typically transferred from one trophic level to the next?
Practice 6medium
Which of the following is a biotic component of an ecosystem?
Practice 7medium
Which of the following is an example of a decomposer in an ecosystem?
Practice 8medium
What is the primary source of energy for most ecosystems on Earth?
Practice 9medium
Which of the following activities would have the most negative impact on biodiversity in a forest ecosystem?
Practice 10hard
Which of the following is a biotic component of an ecosystem?
Practice 11hard
A food chain consists of grass → grasshopper → frog → snake. If the grass contains 10,000 units of energy, how much energy will be available to the snake?
Practice 12hard
In an ecosystem, approximately what percentage of energy is transferred from one trophic level to the next?