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Greeley [361]
3 years ago
14

What do we call "a wave that can travel without a medium"?

Social Studies
1 answer:
malfutka [58]3 years ago
7 0
Waves that can travel without a medium to travel through are electromagnetic waves.  Please rate! Thank you so much!
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How was President Franklin Roosevelt's personal life related to the state of Georgia?
Bess [88]
Answer: he visited warm springs and georgia 41 times and he did a lot in warm springs even had a home that he later after being elected used as a retreat from the rigos through the great depression. he died there in 1945. also he has a military past thete

Hope this helps (:
6 0
3 years ago
Read 2 more answers
.) (2x – 4)² – 5 = 31,<br>​
stellarik [79]

Answer:

5

Explanation:

(2x – 4)² – 5 = 31

Adding 5 to both sides gives

(2x – 4)² – 5+5 = 31+5

(2x – 4)² = 36

(2x – 4) = √36

2x-4 = 6

Adding 4 to both sides gives

2x-4+4=6+4

2x= 10

Divide through by 2

2x/2 = 10/2

X= 5.

5 0
3 years ago
What are the 3 main forces from outside the earth that also cause changes on its surface?
adelina 88 [10]

Answer:

Wind, water, and ice erode and shape the land. Volcanic activity and earthquakes alter the landscape in a dramatic and often violent manner. And on a much longer timescale, the movement of earth's plates slowly reconfigures oceans and continents. Each one of these processes plays a role in the Arctic and Antarctica.

Explanation:

Whereas a change in a person may take 10-50 years to manifest itself, changes in the earth can take millions of years to become apparent. Also, humans may experience changes in their personalities as well as in their bodies, while changes in the earth are never psychological.

7 0
3 years ago
Domestication and pastoralism were key aspects in the development of the
Tatiana [17]

Answer: The school board wants you to answer C) Agricultural Revolution, but that is incorrect.

The correct answer would be during the Neolithic Era, so none of the choices would be the right answer.

Explanation: During the Paleolithic Era, which corresponds to the old stone age, people were hunter-gatherers.  This means that they obtained food by hunting animals and by gathering fruits, vegetables, and nuts from local plants.  So options A and B are pretty much the same thing and incorrect.

Domestication and pastoralism developed during the Neolithic or new stone age when people discovered that, if they took care of certain plants, they would grow again and give them more food.  Domestication is not the same thing as agriculture (even though the school system continues to teach it this way).

The Agricultural Revolution actually refers to a much later period in history, during the 18th century in Britain, when traditional agriculture went through a process of transformation.  This is way after domestication and pastoralism.  

Finally, option D is also incorrect because classical civilizations like Greece and Rome already had full-scale agriculture and had already gone through the process of domestication and pastoralism.

6 0
3 years ago
List three major trends in climate that scientists have documented so far. now list three future trends that they predict, along
mel-nik [20]

it is widely discussed that the weather conditions have been changing and affecting human beings and nature. Scientists have documented different trends as greenhouse effects, disturbance in the patterns of precipitation,   sea level rising, among others. All these climate trends have different effects on the environment such as increasing the average of earth temperature melting glaciers which makes the sea level to rise.

Although these trends have already been documented there are many predictions with their consecuenses for the same issues. For example, for the greenhouse gas concentrations the prdictions show that they will grow and make the oceans more acid and thearth humans life. On the other hand, patterns of precipitacion are expected to change from regions and seasons being the key global projection that the precipitations will increase the same as winds associated with storms. Finally, the sea level is expected to rise expanding the ocean water.

7 0
3 years ago
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