Answer:
Armas nucleares, armas químicas y armas biológicas.
Explicación:
Las armas de destrucción masiva y sus efectos dañinos en el mundo a lo largo de la historia se componen de tres tipos principales que son las armas nucleares, las armas químicas y las armas biológicas. Las armas nucleares se refieren a las armas atómicas y las armas de radiación, las armas químicas se refieren a los gases venenosos y las armas biológicas son las toxinas y patógenos naturales que causan destrucción masiva y grandes daños al mundo y su medio ambiente.
The impact that the Railroad had on the relationship between eastern cities and the great plains was that through the Railroads, crops and grain were brought to cities in the East. At the same time, settlers were brought to farms in the Great Plains.
Answer:
B
Explanation:
It is given that Amy is doing a science experiment on how a certain bacterium reacts to an antibiotic. She has 3 dishes of identical bacterium samples with 11 bacteria in each dish. She gives an antibiotic to all of the bacteria in one dish. All of the treated bacteria died, and the bacteria in the other two dishes survived.
Therefore, the sample size is 33.
Portuguese colonization in the 1400s inaugurated an era of aggressive European expansion across the Atlantic. The Spanish, threatened by the Portuguese monopoly on enslaved Africans and expansion in the Atlantic, started their own colonization project with Christopher Columbus in 1492
