Final answer:
The correct sequence of biomes encountered when traveling from south to north in the northern hemisphere is Desert → Savanna → Temperate Grassland → Deciduous Forest → Boreal Forest → Tundra.
Correct answer is B
Step-by-step explanation:
- Desert → Savanna
 - Savanna → Temperate Grassland
 - Temperate Grassland → Deciduous Forest
 - Deciduous Forest → Boreal Forest
 - Boreal Forest → Tundra
 
Correct answer is B