Previous Year Questions
Practice Questions
Browse and practice real questions from previous scholarship exams. Use filters to narrow down by year, subject, or exam.
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Q. 487
What term describes the harmful accumulation of non-biodegradable chemicals in increasing concentration at higher trophic levels of a food chain?
Q. 488
Which layer of the Earth's atmosphere protects living organisms from the sun's harmful ultraviolet (UV) radiation?
Q. 489
Which of the following is a renewable source of energy?
Q. 490
What is a food chain in an ecosystem?
Q. 491
Which cell organelle, found abundantly in plant cells, is responsible for storing water, ions, and maintaining turgor pressure?