DP Biology (last assessment 2024)
Question 19N.3.HL.TZ0.17a
| Date | November 2019 | Marks available | [Maximum mark: 1] | Reference code | 19N.3.HL.TZ0.17a |
| Level | HL | Paper | 3 | Time zone | TZ0 |
| Command term | Identify | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 1]
19N.3.HL.TZ0.17a
(a)
The figure below shows the effects of soil pH on nutrient availability. Thicker bars indicate higher nutrient availability.
[Source: diagram drawn from Emil Truog, 1947, The Liming of Soils, USDA Yearbook of Agriculture 1943–1947,
and N.A. Pettinger, 1935, A Useful Chart for Teaching the Relation of Soil Reaction to the Availability of Plant
Nutrients to Crops, Virginia Cooperative Extension, Virginia Tech, and Virginia State University]
Identify which element is more available in strongly acid conditions.
[1]
Markscheme
iron/Fe ✔
