The common core ........................
Under feudalism, lords were responsible for ruling different regions of a country.
These regions were given as a fief to the Lord by the King or a higher rank Lord in return for their loyalty and service.
Depending on the kingdom, this alliance between the King and his vassal could be inherited. If the king needed so, the Lord had to pay service of arms, gathering knights and soldiers for war. They also had to protect the land given and the people living in it for the King.
This was necessary for kings in Middle Ages because they didn’t have enough power and an army to protect their realms from invasions and raids. Lords were the ones who had private armies, so they could actually protect the country. This is why they became responsible for ruling different regions.
You can learn more about feudalism in the link below:
brainly.com/question/20082482
#SPJ4
Answer: A biased observation
Explanation:
Sandi's observation is a biased one because she already made conclusion even when her observations are carried out it's likely going to be a partial judgement.
The superficial change in a system which itself stays invariant is termed <u>First-order</u> while the basic change in the structure of a system is called a <u>second-order</u>.
<h3>What is a
change?</h3>
This refers to any consistent trend in the environment that affects a substantial part of the globe.
However, the First-order is used when for the superficial change in a system and the Second-order is used for the basic change in the structure of a system.
Therefore, the "First-order" and "Second-order" are the respective answers.
Read more about change
<em>brainly.com/question/25594630</em>
#SPJ4
