Compare vegetation types by setting matched climate evidence side by side, then state what the climate explains and what it does not. Never say climate alone decides vegetation.
This lesson follows connecting a vegetation feature to climate evidence within vegetation, climate and wildlife relationships.
How do I compare two zones?
Choose the same measures for both, then write one linked sentence per measure. Finish with a line about other factors.
Start with the climate table, since it is the evidence you are given.
Worked example: two zones
This is an original table. Both zones have an average temperature near 27°C.
| Measure | Zone F | Zone G |
|---|---|---|
| Annual rainfall | 2 400 mm | 600 mm |
| Dry months (under 50 mm) | 0 | 7 |
| Main vegetation | Dense forest, tall trees | Grass with few trees |
| Soil depth | Deep | Shallow |
Rainfall in F is 2 400 − 600 = 1 800 mm more than in G, which is 4 times as much (2 400 ÷ 600 = 4).
A comparison: “Zone F receives 2 400 mm with no dry months, whereas Zone G receives 600 mm with 7 dry months, which is consistent with dense forest in F and grass in G.”
Now add the limit: “Soil is deeper in F, so climate is one factor, and the table cannot show how much each factor contributes.”
The mistake that loses marks
The weak answer says “Climate decides vegetation, so F has forest and G has grass”. The word decides claims too much.
| Weak | Strong |
|---|---|
| Rainfall decides the plants. | Rainfall is consistent with the plant difference. |
| G has grass because it is dry. | Dry months may help explain grass, and shallow soil may also limit trees. |
The strong version is safer because it keeps the evidence and leaves room for a second factor.
What if two zones match in climate?
Suppose Zone H has the same rainfall as Zone F, 2 400 mm, but is grassland on a steep rocky slope. Climate cannot explain the difference.
Then another factor must be named, from the data given: slope, rock or land use. If the data names none, write: “The climate is the same, so the difference must come from a factor not shown in the table.” The graph evidence and fair-comparison lab helps you choose safe wording.
Check yourself
Zone J has 1 800 mm of rain and dense forest. Zone K has 1 800 mm and mostly cleared land used for crops. Compare them.
Answer
Both receive 1 800 mm, so climate is the same and cannot explain the difference. Zone K’s plant cover is likely changed by human land use, such as clearing for crops, whereas Zone J keeps its forest.
The data does not state when the clearing happened, so the timing cannot be given.
What to study next
Follow one effect along a food link in explaining how a habitat change can affect a food relationship. For a teacher to check your wording, see online one-to-one Geography tuition.