P Waves (speed): They typically travel at speeds between ~1 and ~14 km/sec.
P Waves (type of motion): They compress and expand (oscillate) the ground back and forth in the direction of travel.
P Waves (type of material the wave travels through): These waves can travel through solids, liquids, and gases.
P Waves (other information): Compressional waves are also called P-Waves, (P stands for "primary") because they are always the first to arrive. They gave us the first jolt last Friday. Shear waves propagate more slowly through the Earth than compressional waves and arrive second, hence their name S- or secondary waves.
S Waves (speed): Speeds are on the order of 1 to 8 km/sec.
S Waves (type of motion): S waves produce vertical and horizontal motion on the ground surface.
S Waves (type of material the waves travel through): S waves only travel through solids.
S Waves (other information): In seismology and other areas involving elastic waves, S waves, secondary waves, or shear waves (sometimes called elastic S waves) is a type of elastic wave and are one of the two main types of elastic body waves, so named because they move through the body of an object, unlike surface waves.
(Hope it helps, please mark it as brainliest)
What risks could there be in having the vast majority of a country’s agricultural production dependent on one crop?
Answer:
Explanation:
According to a new WWF book, agriculture – the largest industry in the world – is one of the biggest threats to the environment. Inefficient food production and harmful agriculture subsidies are causing deforestation, water shortages and pollution.
Answer:
If that crop fails so would the agricultural production of said nation which could lead to famine or economic breakdown
Explanation:
When you rely on only one crop then your basically sitting on a ticking time bomb. If the crop fails and you don't have a replacement, your agriculture is disabled. If that crop is something like cotton, You loose your main export and ability to employ people. If its something like Rice then your citizens loose food which will cause famine in the lands which could lead to rebellion.
Part F
The year the Greek city of Helike disappeared is -⅕ times the year the US Civil War ended. Let w represent the year the Civil War ended. Write an expression in terms of w to represent the year of Helike’s disappearance.
Part G
Use the results from Part E and Part F to determine the year Helike disappeared. Express your answer in terms of BC or AD.
Part H
Using the results from parts D through G, write an expression that represents the number of years elapsed between the disappearance of the Greek city of Helike and the end of the US Civil War. Write the expression in terms of c and w. Then solve the expression to find out how many years separate these two events.
I will give brainliest too
Answer:
The year the Greek city of Helike disappeared is -⅕ times the year the US Civil War ended. Let w represent the year the Civil War ended.
Explanation:
Answer: Part H
-1/5w = Helike Disappearance
c+1/4c = Civil War ended
c+1/4c - (-1/5w) = 2238 years in between
Explanation:
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True or false:
All of the stars in the Universe formed at around the same time as our Sun
The Sun, planets and other solar system objects formed at about the same time.
Early Earth was much like Earth today.
Before there was an ocean, there was water vapor in the atmosphere.
Answer:
1: False
2: True
3:False
4:False
srry if im wrong
Explanation:
How do the geography and resources of Chile and Peru help these countries' economies? Include at least one example for each country in your answer. (I rlly need help, I don't want anymore overdue assignments yall)
Answer:
South America, the fourth-largest continent, extends from the Gulf of Darién in the northwest to the Tierra del Fuego archipelago in the south. Along with the islands of Tierra del Fuego, the continent includes the Galápagos Islands (Ecuador), Easter Island (Chile), the Falkland Islands (United Kingdom), and the Chiloé and Juan Fernández archipelagos (Chile). South America and North America are named after Italian navigator Amerigo Vespucci, who was the first European to suggest that the Americas were not part of the East Indies, but an entirely separate landmass. The portions of the landmass that lie south of the Isthmus of Panama became known as South America.
Why is it important for all the phases of growth and reproduction to proceed correctly in order for a plant species to survive?
Answer:
uuuhhh what in the world
What steps could Argentina’s government take to address concerns about the effects of an increased dependence on soy?
Answer:
eat less soy:)
Explanation:
Answer:
Argentine farmers, anxious about an increasingly murky political outlook and economic turmoil, are turning toward soy over more expensive corn to cut costs, a shift that could impact next season’s harvest in one of the world’s top grain exporters.
Farmers said a volatile economic situation in Argentina and the likelihood of a new administration at the end of the year, after President Mauricio Macri was hammered in primary elections, meant soybeans looked a less risky bet than corn.
Corn costs around $500 a hectare to produce, around 70% more than soy, local consultants say, because it requires more investment in fertilizers and new seeds each season.
Dino Garimanno, a farmer in the central Argentine town of Laboulaye, said he was considering replacing his corn with a cheaper option.
“It is a little scary to bury all those dollars in the ground,” he said.
The trend could weigh on Argentina’s 2019/20 corn harvest and bolster the output of soy, analysts said. The country - now at the start of the planting season - is the world’s top exporter of processed soy and the number three for corn exports, behind Brazil and the United States.
Fears over the future government’s policy direction have increased since business-friendly Macri was soundly beaten in the Aug. 11 primary by Peronist rival Alberto Fernandez, rocking markets. Fernandez is running on a ticket with populist ex-President Cristina Fernandez de Kirchner.
Fernandez de Kirchner is highly unpopular with the country’s farmers after bringing in export curbs and taxes on overseas farm sales during her 2007-2015 presidency. The general election is on Oct. 27.
“The (primary) result has generated uncertainty and producers will be changing portfolios to incorporate more lower cost crops,” Pablo Adreani, Buenos Aires-based head of AgriPac consultancy, said in an interview.
Gustavo López, director of consultancy Agritrend, estimated farmers would likely cut the area intended for corn this season by 200,000 hectares, to 6 million hectares. Soybeans would take that area to reach 17.7 million hectares.
Please Help Within 5-30 minutes!!
1. What is a major difference between the economies of the United States and the countries of northwestern Europe? why does this difference exist?
2. The United Kingdom and Ireland are members of the European Union. Ireland uses the euro currency; Britain uses the British pound. Why do you think the EU allows its members to have a choice about its currency?
3. What do you think would happen to energy costs if oil production in the North Sea dried up? How would Scandinavian countries make up for the resulting resource scarcity?
Answer:
1. The Northern and Western Europe region includes economies from Northern Europe (Denmark, Finland, Ireland, Norway, Sweden, and the United Kingdom), and Western Europe (Austria, France, Germany, the Netherlands, and Switzerland).
2. The United Kingdom, while part of the European Union, does not use the euro as a common currency. The UK has kept the British Pound because the government has determined the euro does not meet five critical tests that would be necessary to use it.
3. Mineral oil is an energy-intensive and versatile liquid which humans have been exploiting on a large scale since the 1850s. After 170 years, many are calling for its production to cease completely. The question is what would happen then.
If oil disappeared tomorrow, that’s what would go – a society completely different from what it was in 1850 when we seriously began to exploit hydrocarbons. We’ve got so used to this that we don’t even think about it.
After accounting for indirect taxes and in-kind transfers, the US redistributes a greater share of national in- come to low-income groups than any European country. “Predistribution”, not “redistribution”, explains why Europe is less unequal than the United States.