Respuesta :
Answer:
Laborers migrated in large numbers from rural to urban areas.
The amount of land available for agriculture increased rapidly.
Explanation:
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The two sentences describe a major cause and a major effect of the population changes shown in the table are:
Laborers migrated in large numbers from rural to urban areas.
The amount of land available for agriculture increased rapidly.
What are the causes of population changes?
Birth, death, and migration are the main determinants of population. Death reduces the population, whereas birth increases it.
Population change is also a result of migration. Internal migration has no impact on population changes, whereas foreign migration alters population density.
For more information about population changes refer to the link:
https://brainly.com/question/27991860
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