Look at this link
https://www.weknowtheanswer.com/q/how-have-marine-sediments-helped-scientists-learn-about-ancient-cl...
Answer:
Early human migrations are the earliest migrations and expansions of archaic and modern humans across continents and are believed to have begun approximately 2 million years ago with the early expansions of hominins out of Africa of Homo erectus. This initial migration was followed by other archaic humans including H. heidelbergensis, which lived around 500,000 years ago and was the likely ancestor of both Denisovans and Neanderthals. Early hominids were said to have "crossed land bridges that were eventually covered in water" (History Alive, pub. 2004, TCI).
Explanation:
plz mark me as brainiest
Ross himself explained the concept of a prima facie duty using the language of reasons." The fact that a promise has been made itself constitutes a reason why it should be fulfilled," he says, for instance (KT 21). These reasons help me figure out what my actual obligation is or why I should do it.
What does Ross believe?
Ross asserts that there will always be one duty that is the right thing to do—or, as Ross refers to it, one's duty proper—in any given circumstance. This duty will always have a greater urgency or priority than the others.
How does Ross figure we can come to understand what our obligations legitimate are?
Similar to how we comprehend the axioms of mathematics or geometry, we comprehend our prima facie duties:" The self-evident prima facie rightness of an individual act of a particular type" serves as our focus as we do so.
Learn more about Ross here:
brainly.com/question/20998294
#SPJ4
C social learning, because they are imitating what they learned from television