O-LevelBiologyEcology & Environment5090/11 · May/June 2021 · Q321 Mark

Which human activity will make the greatest contribution to global warming?

Acutting down established trees and replanting with young trees

Bcutting down established trees and using the cleared land to raise cattle

Creducing the use of diesel fuel in public transport vehicles

Dusing fewer insecticides and herbicides on farms

✓ Correct answer

B: cutting down established trees and using the cleared land to raise cattle

Oracle Prep sorts past-paper questions by topic, so you can drill Ecology & Environment and see which topics are most likely to come up next.

Topic: Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2021 Paper 1 Variant 1, question 32.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content