The correct answer is option B.
Edmond Halley correctly predicted the return of the eponymous comet Halley after he realized several sightings of a comet were in fact the same comet.
By correctly understanding Sir Isaac Newton's law of gravity and also his ideas in mathematics, Halley was able to correctly predict that the comet that now bears his name would return periodically. He did this by discovering Halley's orbit in 1716 and thus being able to predict the year of its return.
Answer: contracting
Explanation:
The contracting power is the acquisition by the government of goods and services on behalf of the public authority. However, to prevent fraud and corruption, the laws of most countries regulate this power of government to a certain extent. That is why in many cases a contracting authority is required to issue public tenders if the value of the acquisition exceeds a certain amount or threshold.
Therefore:
The government's power to set conditions on companies seeking to sell goods or services to government agencies is known as <u>contracting</u> power.
The Roman culture benefited the Greek stoicism
A - Because they are a direct link to the events in history
Primary sources are sources that came from that time of history from the same location, time period, and era. For instance, journals from World War II from a French Military leader. These are direct links to that time in history and are the most accurate sources that are presented.
B is incorrect as even without these sources there are other methods to know about history such as secondary sources.
C is incorrect as primary sources are not the only way - again, secondary sources are a thing.
D is incorrect as secondary sources are reliable and can be trusted, but they just aren't as important and well, direct as primary sources.
Hope this helps!