Sugar was the main crop produced on plantations throughout the Caribbean in the 18th, 19th, and 20th centuries. Most islands were covered with sugar cane fields, and mills for refining it. The main source of labor, until the abolition of chattel slavery, was enslaved Africans
<span> When Rome declined, the western half of the empire formed the Byzantine Empire. The eastern half became the Holy Roman Empire. Because the Byzantine Empire came from the fall of the Roman Empire, the Byzantine Empire had many similarities with Rome. In addition to these similarities, there were also several differences between these two empires. This includes culture, religion, and location. These similarities and differences helped shape the Byzantine Empire into what it became.</span>
The correct answer is Amazon DynamoDB
DynamoDB is a cloud service. Amazon hosts all the infrastructure needed to run an instance of DynamoDB for its customers. In return, customers must pay for the following:
Every read request
Every write unit request
Each byte of storage used (storage)
The currency for these requests are RCU (Read Capacity Units) and WCU (Write Capacity Units). In general, a DynamoDB table needs to have a certain provisioned RCU / WCU (// B) at the time of creation (can be modified at any time as well) and the table can serve as many readings / writes as needed, as long as the RCU / Provisioned WCU support traffic.
Answer:
d. cross-sectional study
Explanation:
In research, a cross-sectional study consists of a gathering of data from a population or a subset of the population we want to investigate at an specific point of time. In other words, the data will give us an idea of what's happening within a group in a particular moment in time.
In this example, the researcher gives 20-year-olds, 40-year-olds, and 60-year-olds a questionnaire. He wants to know if older people are calmer than younger ones. We can see that <u>he wants to know what's happening within this groups (the 20 year-olds, the 40's and the 60's) during this particular time of their life </u>and therefore determine if the 60 year-olds are calmer. Therefore this is an example of cross-sectional study.
What are your answers? I'd like to see your guesses before I put work effort into this.
