Practice question · Multiple choice
Why does a continent’s east–west axis matter for the diffusion of crops and animals?
Hints
- What is a crop adapted to?
- What changes as you move north or south?
Show the answer
C. Domesticates spread along a shared latitude and climate band
Why
Crops track latitude, day length and temperature. Eurasia’s east–west span let a domesticate travel thousands of kilometres inside one band; the Americas and Africa force every diffusion through climate zones that kill it.
Practise Big History and Environmental History
The app has 4 more questions on this lesson, and keeps your place in the course. History I is free to start.
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