When did human beings first arrive in the Americas? How did they get there?

Answers

Answer 1
people were across the Americas by 15,000 years ago. The first people to reach America travelled via the Pacific coast.
Answer 2

Answer:

About 30,000 years ago, during the Ice Age, temp. fell and much of Earth was covered by glaciers, sheets of ice up to a mile thick. This exposed a wide bridge of land between Asia and North America that scientists call Beringia.


Related Questions

When you fill out a check for certain amount of money and then sign that check, you are saying you might have money in that account?

Answers

when you fill out a check then sign it that means that there is positive that amount in your balance and that you are willing to pay it for whatever the case may be

Brandon has promised himself time to relax with a good book after he finishes studying for the day. Which extrinsic motivation strategy is Brandon using? Pace yourself. Reward yourself. Get help early. Avoid burnout

Answers

Answer:

B. Reward Yourself

Explanation:

Just did it on edge 2020

Which is not an explanation for why new approaches began to emerge in the 1950s and 1960s challenging the dominance of the psychodynamic and behaviorist approach

Answers

Answer:

Behaviorists were criticized for not being scientific

Explanation:

In the 1950s and 1960s, the two psychological theories that were common are the psychodynamic and behaviorism theories. These two theories were developed based on scientific principles. They were widely used by different professionals to provide explanation for several occurrences. They were also criticized for various reason except for the one above.

How does planning activities at your own home help you avoid situations involving alcohol? A. Your home life does not involve situations with alcohol use. B. Alcohol use is almost always tied to group events outside the home. C. You can control whether or not there is alcohol in your home. D. Planning activities at home does not help you avoid situations involving alcohol. Please select the best answer from the choices provided.

Answers

You can control whether or not there is alcohol in your home to avoid situations involving alcohol.

Answer: Option C

Explanation:

When you plan something like birthday parties, get-together functions outside the house which will not able to control alcohol consumption. So when you plan these functions at the house then there will be a control of consuming alcohol.

You will be in charge of your function at home so there you can decide what to do there and not. In-home there will be well-wishers of your health who will insist you to stop consuming alcohol by explaining the negative effects of it.

Answer:

C: You can control whether or not there is alcohol in your home

Explanation:

Technician A says most shops use a spray wash cabinet to degrease their engine blocks. Technician B says some shops dip their major engine parts in a hot or cold caustic solution for deeper cleaning. Who is correct?

Answers

Final answer:

Both Technician A and B are correct in their statements about cleaning engine blocks. Technician A discusses spray wash cabinets, while Technician B mentions caustic baths for deeper cleaning.

Explanation:

Both Technician A and Technician B are correct. Engine blocks need to be thoroughly cleaned to ensure proper operation after rebuilding, and different shops use various methods to achieve this. Technician A is referring to a common practice where a spray wash cabinet is used to degrease engine blocks, which effectively removes oil and grease with detergent and hot water. On the other hand, Technician B mentions the use of a caustic solution, which involves soaking engine parts in a hot or cold caustic bath that can provide a deeper clean by breaking down tougher grime that a spray wash might not remove.

These caustic solutions often contain different chemicals for cleaning purposes, and the practices mentioned by both technicians reflect the range of methods used in the industry. However, it's important to note that acidic cleaning agents, typically used for removing inorganic deposits like scaling, comprise strong mineral acids along with chelants, surfactants, and corrosion inhibitors.

Summarize the work of Nobel Prize winner Roger Sperry that is discussed in this article. (Site 1)

Answers

Sperry received the 1981 Nobel Prize in Physiology or Medicine for his split-brain research. Sperry discovered that the left hemisphere of the brain was responsible for language understanding and articulation, while the right hemisphere could recognize a word, but could not articulate it.

Roger Sperry's work can be summarized based on his discoveries on how the cerebral hemisphere functions.

According to him the human mind/brain is made up of two sides. The right hemisphere and the left hemisphere. The right is driven by emotions and a person who makes use of this part mostly would always arrive at conclusions emotionally.

The left part of the brain is used for logical thinking, a person who uses it is one who is calculating and can be creative.

He proposed techniques that could help to take care of people with epileptic episodes and said there has to be a balancing between the use of the both the left and the right side of the brain.

Read more on https://brainly.com/question/13940590

Can someone please explain the Chechen conflict with Russia in 1999?

Answers

https://youtu.be/wX-xs9VJ-BI
https://youtu.be/ap0BiR3NF6w


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