Question 19M.3.HL.TZ2.21a.ii
| Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.3.HL.TZ2.21a.ii |
| Level | HL | Paper | 3 | Time zone | TZ2 |
| Command term | Suggest | Question number | a.ii | Adapted from | N/A |
Australia is in the Southern Hemisphere so December to February are summer months and June to August are winter months. Data on vitamin D deficiency levels were collected throughout the year for the Australian National Health Measures Survey. This was then used to analyse the seasonal effects of vitamin D deficiency. Vitamin D deficiency levels for those who had their blood samples taken in summer were compared with those who had them taken in winter. The maps show the vitamin D deficiency by state between 2011 and 2012.
[Source: www.abs.gov.au/ausstats/[email protected]/Lookup/4364.0.55.006Chapter2002011-12]
Suggest one reason why people in Victoria show such a large seasonal change in vitamin D levels.
[1]
less sun in winter than in summer
OR
colder in winter so cover up/indoors more
OR
skin has more exposure to sun in summer ✔
Accept other valid suggestions.
Accept vice versa.
Most could provide a valid reason for a large seasonal change in Victoria implying a decrease in sun exposure; some answers were nevertheless unclear or irrelevant.
