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lions [1.4K]
3 years ago
5

Why did diseases like smallpox decimate (kill) native American populations?

History
1 answer:
andre [41]3 years ago
4 0

Answer:

because the natives did not have an immunity to that disease

Explanation:

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The global transfer of plants, animals, technology, and disease during colonization of the Americas is known as the:
zhenek [66]
This is known as the Columbian Exchange; option A. This includes for example Coffee and Chocolate (the plants); which are today to a great degree cultivated in a continent different than the one they originally evolved on.  
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5 0
3 years ago
The relationship between two variables is positive when
Viktor [21]

The relationship between two variables is "positive when  one variable increases and the other increases" and the relationship between two variables is "negative when one variable increases and the other decreases".

<u>Answer:</u> Option C

<u>Explanation:</u>

"Variables" are the characteristics or properties that change or could be changed and responsible for variations in results. A variable is any factor, trait, or condition which occurs in differing amounts or types, usually independent, dependent, and controlled are kinds of variables preferred in any stream.

"Positive correlation" occurs when two variables move in same direction, for an instance like when one variable increases and the other increase or when one variable decrease and the other decreases. While "negative correlation" take place when two variables move in different directions like when one variable increases and the other decreases or when one variable decreases and the other increases.

5 0
3 years ago
I need this answered really soon please help me out!
Kazeer [188]

1 c // 2 d // 3a,b// 4 a//5 b//6 a,b// 7 d//8 b,c

5 0
3 years ago
Why do sesonal conditions vary in part of the world
Lerok [7]

Answer:

Para empezar, la Tierra no es una esfera perfecta. Y cuando gira sobre su eje (una línea imaginaria que atraviesa el mundo desde el Polo Norte al Polo Sur), su rotación se parece más a la de una peonza que a la de una esfera, bamboleándose y desviándose continuamente. Es lo que se conoce como "movimiento polar".

Las mediciones realizadas durante décadas demuestran que, solo durante el siglo XX, el eje de giro se desplazó alrededor de 10 cm por año. Lo que, durante todo el siglo, supone un desplazamiento de más de 10 metros. Ahora bien, ¿a qué se debe exactamente esta deriva?

Un equipo de investigadores de la NASA ha utilizado datos observacionales que abarcan todo el siglo XX y ha conseguido, por primera vez, identificar las causas del desplazamiento. Son tres: la pérdida de masa, principalmente en Groenlandia; el llamado "rebote glacial" y, por último, la convección del manto. El estudio se acaba de publicar en Earth and Planetary Science Letters, y cualquier persona que esté interesada puede acceder a una simulación interactiva de cómo los varios procesos contribuyen al "bamboleo" del eje de rotación terrestre.

'La explicación tradicional - afirma Surendra Adhikari, investigador del Jet Propulsion Laboratory de la NASA y autor principal del trabajo- es que un solo proceso, el rebote glacial, es responsable de este desplazamiento del eje de rotación terrestre. Pero recientemente, muchos investigadores han especulado que otros procesos podrían tener también grandes efectos sobre él. Elaboramos modelos para un conjunto de causas que se consideran importantes para impulsar el movimiento del eje de rotación. Al final no identificamos uno, sino tres conjuntos de procesos que son cruciales. Y la fusión de la criosfera global (especialmente Groenlandia) a lo largo del siglo 20 es uno de ellos".

Explanation:

3 0
4 years ago
Which of the following best describes the impact of the Enlightenment on the Great Awakening?
tiny-mole [99]
The correct option is B,
The enlightenment established the basic ideals of the great awakening. The great awakening which occurred between 1730 and 1740 gave colonists a shared national religious experience.The awakening is an attempt to turn people back to God and it is an outcome of the enlightenment.  <span />
4 0
3 years ago
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