Question 21M.2.SL.TZ2.b
| Date | May 2021 | Marks available | [Maximum mark: 1] | Reference code | 21M.2.SL.TZ2.b |
| Level | SL | Paper | 2 | Time zone | TZ2 |
| Command term | Outline | Question number | b | Adapted from | N/A |
Honeybees (Apis mellifera) are key pollinators in most ecosystems. The worldwide use of neonicotinoid pesticides has caused concern because they may be contributing to the decline of honeybee populations.
Scientists measured the concentration of five neonicotinoids (acetamiprid, clothianidin, imidacloprid, thiacloprid and thiamethoxam) in honey samples from 198 different locations across the world. Each pie chart shows the relative frequency of neonicotinoids in honey samples from a continent.
[Source: Republished with permission of American Association for the Advancement of Science, from A worldwide survey of neonicotinoids in honey, Mitchell, E.A., et al., Science, Volume 358, Issue 6359, 2017. Permission conveyed through Copyright Clearance Center, Inc. https://science.sciencemag.org/content/358/6359/109.full.]
Using the data, outline the different use of thiamethoxam in North and South America.
[1]
thiamethoxam is the most used in North America (but not in South America) / CONVERSE
OR
in South America they use different neonicotinoids to thiamethoxam ✔
OWTTE.
Allow numerical comparison.
In general, the data analysis question was well attempted by the majority of students.
Most identified that the proportion of the pesticide was greater in North than South America. This does not actually mean that a greater mass was used as these were relative frequency graphs.
