Discussion
A crop yields \( 4.2 \) tonnes per hectare in clean air and \( 3.6 \) tonnes where ozone is elevated. The yield loss is
Answer: A
Correct answer: 14.3 per cent
The loss is expressed relative to the clean-air yield:
\[ \frac{4.2 - 3.6}{4.2} \times 100 = \frac{0.6}{4.2} \times 100 = 14.3\ \mathrm{per\ cent} \]
The distractor \( 16.7 \) divides by the polluted yield instead, which overstates the loss. Ozone is the pollutant responsible for the largest crop losses worldwide, precisely because it enters through open stomata and so does most damage on well-watered plants in bright growing conditions.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development