Previous Year Questions
Practice Questions
Browse and practice real questions from previous scholarship exams. Use filters to narrow down by year, subject, or exam.
Displaying 641 - 645 of 1956
Q. 485
What term describes materials that can be broken down by natural biological processes (e.g. by bacteria)?
Q. 486
What are the three R's commonly promoted to conserve natural resources and manage waste?
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?