Compare demographic and environmental effects of the columbian

Similarity 1: Europe and America introduce new crops to hemispheres.

Analysis: Crops such as corn, beans, squash, and potatoes create a population increase in the new world.

Similarity 2: Europe and America's interactions spread diseases and affect populations.

Analysis: Malaria spread from Europeans and African slaves cause the population in the Americas to diminish.

Similarity 3: Europe and the Americas exchange foreign animals.

Analysis: The Americas receive the horse, which allows for better transportation; and the pig which further changes dietary habits; and the Europeans receive llamas and alpacas and pack animals.

Difference 1: Populations in America decrease, while populations in Europe increase.

Direct Comparison: The Americas faced widespread diseases from the Europeans that wiped out segments of the population, while the Europeans influx of valuable crops increased their population.

Difference 2: The introduction to animals causes overgrazing in the Americas, while animals in Europe had little effect on the environment.

Difference 3: The Americas indigenous cultures were widely affected by the influence of Europeans who were able to insert control and colonize due to the harsh effects of diseases.

which elements do geologists measure to determine the age of an organism’s remains? check all that apply.

carbon-14

nitrogen

carbon-12