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juin [17]
3 years ago
5

What time did an earthquake occur if the first P-wave was recorded at 9:40am, after traveling 2000km?

Geography
1 answer:
rosijanka [135]3 years ago
7 0

According to the information presented in the graph, the earthquake occurred at 9:37 am.

The graph shows the relationship between the time (minutes) and the distance (km) that the P waves of an earthquake took to travel.

This graph shows two lines, a red one representing the S wave and a blue one representing the P wave.

According to this graph, the earthquake waves took about 3 minutes to travel the 2000km where they were first detected.

So the answer is 9:37 am, because at 9:40 am I had already traveled 2000 km.

Learn more in: brainly.com/question/1296104

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25 billion tons of soil are lost through erosion as a result of farming every year . What do you think happens to that soil ? In
Dimas [21]

Answer:

Soils are the key ingredient for the plants and crops to grow. A large amount of soil is eroded every year due to the practice of farming. This is about 25 billion tons of soils.

Due to the various type of agricultural practices, the topsoil comprising the valuable minerals are continuously eroded by factors such as wind and water. This results in the increasing loss of soil fertility, and also it can lead to the occurrence of droughts, sandstorms, and dust bowls.

Dust bowls are the region where there occurs no rainfall and absence of vegetation, and soils are eroded drastically making a sandy dust environment, and affecting the ecosystem.

In order to prevent these effects, certain steps must be taken, and they are as follows-

  • Planting more trees and crops so that the wind cannot cause much impact on the area.
  • The waste vegetative particles and matters must be allowed to distribute evenly over the surface of these areas, so that wind cannot easily transport these sediments.
  • Mulching of the soil must be done.
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5 0
3 years ago
How long will it be until North America experiences its next High Tide?
tatyana61 [14]

Answer:

Because the Earth rotates through two tidal “bulges” every lunar day, coastal areas experience two high and two low tides every 24 hours and 50 minutes. High tides occur 12 hours and 25 minutes apart.

6 0
2 years ago
Which statement regarding real and virtual images is correct? Rays of light emanate from a virtual image, but only appear to do
SpyIntel [72]

Answer:

Rays of light emanate from a real image, but only appear to do so from a virtual image.

Explanation:

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  • Thus a real image occurs where the rays of light converge and a virtual Image occurs when the rays of light diverge and a virtual image can't be projected to a screen as compared to a real image.
4 0
3 years ago
May you please tell me the answer or educate me on the answer. I have all my notes but still seem not to know the answer.
ankoles [38]

https://study.com/academy/lesson/how-geography-isolated-ancient-china.html

That video will explain everything. I have already learned this in school, and it is very important on the test. VERY IMPORTANT.

8 0
3 years ago
What was the name of the narrow eastern coastal plain that slopes gently upward to the time worn ridges of the appalachians?
ser-zykov [4K]

A narrow eastern coastal plain traversed by many river valleys and gently sloping to the ridges of the ancient Appalachian Mountains. Route of America.

The Appalachian Mountains are a range of mountains that run along the eastern coast of North America, from Newfoundland and Labrador in Canada in the north to Alabama in the United States in the south.

The area is rich in natural resources, but the population is often poor. In addition, declining education levels and lack of public infrastructure (highways, developed cities, businesses, medical services, etc.) are deteriorating the economic situation in the region. especially in remote mountainous areas. They have pitted men against each other in sprawling clans for decades, often using murder and arson as weapons, along with ambushes, gunfights, and prearranged firefights.

Learn more about Appalachians at

brainly.com/question/1621716

#SPJ4

3 0
1 year ago
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