Why did so many twentieth century scientists and farmers focus their efforts on fertilizers and
herbicides?

Answers

Answer 1

Answer:Agriculture of the twentieth century will be remembered for its scientific foundations and for high crop yields. The change began following a number of scientific discoveries which were to modernise agriculture and give rise to intensive production systems. Darwin [4] had put forward his theory of origin of species in 1859 with a totally new concept of the biological world. It took time for the theory to gain wide acceptance and once that happened, its implications for the evolution of improved crop varieties and new breeds of animals were not lost. Mendel’s [11] laws, which led to the concept of genes as determinants of different traits of an organism and an understanding of their mode of inheritance, provided the needed scientific methodology for this purpose. Liebig’s [10] work about the same time on the role of inorganic fertilizers in crop production provided a new insight in the field of plant nutrition, and Muller’s [12] synthesis of DDT paved the way for the use of a large number of organic pesticides for crop protection.

Explanation:


Related Questions

Responsibilities of citizenship are actions that citizens must take or they can be punished.
True
False

Answers

There’s a difference between obligations and responsibilities, so I say false because your responsible for your actions.

How did WWII effect African American thinking about racism, especially in the south?

Answers

Answer:

they looked at the black people and said "wow they look different we must put the in slavery" and yeah

Explanation:

Discuss in detail an issue that is going on today that has links to the Cold War?

Answers

Their is still communist countries
communist countries

How did Hernán Cortés affect the Aztec Empire?

He paid the largest tribute to the empire.
He fought the conquistadors for the empire.
He started a successful trade with the empire.
He joined with its enemies to defeat the empire.

Answers

Answer:

c

Explanation:

What lesson can readers learn from the mongoose text???

Can someone pleaseeee help and if you’re correct i’ll give brainliest

Answers

Answer:

they will learn to be compassionate and the benefits of being innocent not being to cruel..

man could learn that if we do something good for others you could definitely getting back

What were the consequences of the US interference in Chile 1997

Answers

Answer:United States intervention in Chilean politics started during the War of Chilean Independence (1812-1826). The influence of the United States of America in both the economic and the political arenas of Chile has since gradually increased over the last two centuries, and continues to be significant.

Explanation:

Describe how the Civil War impacted
the Northern wartime production.

Answers

Answer:

The North produced 17 times more cotton and woolen textiles than the South, 30 times more leather goods, 20 times more pig iron, and 32 times more firearms. The North produced 3,200 firearms to every 100 produced in the South.

The Union's industrial and economic capacity soared during the war as the North continued its rapid industrialization to suppress the rebellion. In the South, a smaller industrial base, fewer rail lines, and an agricultural economy based upon slave labor made mobilization of resources more difficult.

Why were military reduction inserted

Answers

The Germans hated the Treaty of Versailles due to the harsh terms imposed on her, especially the reparations.

Answer:  The Germans hated the Treaty of Versailles

Explanation

John Locke 1632 –1704 was English philosopher that firmly believed in what we call the?​

Answers

Answer:

He is also famous for calling for the separation of Church and State in his Letter ... Locke believes that using reason to try to grasp the truth, and ... was a Catholic, and England by this time was a firmly Protestant country.

Explanation:

For what reasons were many colonies granted independence after World War II? Check all that apply.Recognition of universal human rightseconomic growth in Europepressure from United Nationsgrowth of nationalismpromises made to colonies during the warEuropean economic weaknessdecline in nationalism

Answers

Answer :Some colonies took advantage of the situation right away, while others worked with their rulers for a gradual process toward independence. But in the decades following WWII, dozens of countries claimed their independence.

Explanation:

how are glasnost and perestroika alike??

Answers

Answer:

I wish i was in high school but im not :(

Explanation:

Answer:

Perestroika (Russian for "restructuring") refers to a series of political and economic ... Glasnost (Russian for "openess") refers to Gorbachev's policy of a more ... to countries like Poland, Bulgaria, Czechoslovakia and Romania.

Explanation:

9. How is the camp for the Oklahoma people different from Esperanza's camp?

Answers

perks and pay

new camp for the workers from Oklahoma where there will be a pool. However, Mexican workers will only be allowed to swim one day per week.

Miguel returns home, covered in dirt, and explains that his job as a mechanic went to one of the inexperienced workers from Oklahoma simply because the "Okie" was willing to accept a lower wage. Esperanza becomes outraged when Miguel tells them that he has agreed to dig ditches instead.

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finally gained
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stay home stay safe​

Answers

congratulationssssssssss

Need help ASAP please

Answers

Answer:

B

Explanation:

PLZZZ HEELP DUE TMR! 40 POINTS! I WILL ALSO GIVE BRAINLIEST! And ur getting reported if the answer is not applicable!
Outline the events of a jousting competition in Medieval England.

Answers

Answer:

Hello! Your answer is BELOW!

Explanation:

Jousting was a kind of sporting contest where two knights on horseback, armed with blunted lances, tilted at each other. Jousting tournaments were very popular in Scotland during the Middle Ages. Jousting was discontinued in favor of other equestrian sports in the 17th century, although non-contact forms of "equestrian skill-at-arms" disciplines survived. There has been a limited revival of theatrical jousting re-enactment since the 1970s. And I don't really like the middle ages because it lived in Europe and it was a long long time ago in my opinion.

Hope I helped! Ask me anything if you have any questions. Brainiest plz!♥ Hope you make a 100%. Have a nice morning! -Amelia♥

What led to rivalries among countries in Europe? *

alliances
nationalism
building of armies
all of these

Answers

Answer: all of the above

Explanation: Alliances helped turn others against each other, those who allied with another nations enemies was a call for war, Nationalism was the way of promoting a nations own self interests and wants, making others disagree, militarism (the building of a nations army) made other weary, making the worried for what reason another nation would do this.

Did islam coexist peacefully with local tribal religions

Answers

Answer:

Muslims through all their never forced people to convert to Islam. Even when Medina was under the control of prophet Muhammad all the spectrum of faiths were living together in harmony and no one forced to convert irrelevant he/she was holy book holder (the Jews and Christians) or idol believer. This is per Quran, Muslims holy book, and prophet Muhammad teachings.

Explanation:

What was the purpose of the Bureau of Refugees, Freedmen and Abandoned Lands?
Plzzz help me

Answers

Answer:

The purpose was it helped many of former black slaves and poor whites that were in the South after the Civil War by providing food, shelter, medical.

Explanation:

Answer:

The Bureau of Refugees:The Freedmen's Bureau, formally known as the Bureau of Refugees, Freedmen and Abandoned Lands, was established in 1865 by Congress to help millions of former black slaves and poor whites in the South in the aftermath of the Civil War

Freedmen :The Freedmen's Bureau was intended to act as a primitive welfare agency, aiming to ease the transition from slavery to freedom. While some Bureau agents were corrupt or incompetent, others worked hard to secure significant freedoms for blacks.

Abandoned Lands:Freedmen's Bureau, (1865–72), during the Reconstruction period after the American Civil War, popular name for the U.S. Bureau of Refugees, Freedmen, and Abandoned Lands, established by Congress to provide practical aid to 4,000,000 newly freed African Americans in their transition from slavery to freedom.

Explanation:

Hope this helps

How did FDR succeed in uniting the American People during the Great Depression? What types of things did he do to generate hope for citizens? Answer in 2-4 sentences.

Answers

Answer:

the New Deal

Explanation:

FDR used two new deal packages to help people get jobs and put more money in the economy.  But it also started what today is Medicare and Medicaid.

Why did people move to Baghdad region by early part of the 8th century?

Answers

Answer:

Center of learning (8th to 9th centuries) Founder, caliph al-Mansur of the Abbasid caliphate, chose the city's location because of its critical link in trade routes, mild climate, topography (critical for fortification), and proximity to water.

brainliest? plz!

Founder, caliph al-Mansur of the Abbasid caliphate, chose the city's location because of its critical link in trade routes, mild climate, topography (critical for fortification), and proximity to water.

Hope this helps :)

Please help (PLEASE NO LINKS)

Answers

The Battle of Midway was a major naval battle in the Pacific Theater of World War II that took place on 4–7 June 1942, six months after Japan's attack on Pearl Harbor and one month after the Battle of the Coral Sea

What was the effect of Cold War in your own words!!!!?!?!?!?!

Answers

Answer:

Explanation:

The Cold War influenced American foreign policy and political philosophy, as well as the domestic economy and presidency, as well as Americans' personal lives. The Cold War lasted almost until the collapse of the Iron Curtain and the Soviet Union's demise.What were the ramifications of the Cold War's end?

Criminality, cultural shifts, and social upheavals are all on the rise. The fall of the Soviet Union not only plunged Eastern Europe's economic institutions and trade ties into disarray, but it also caused upheaval in many Eastern European countries and intensified violence and corruption within the Russian government.

What impact did the English language
have on many immigrants?
A. English was spoken very fluently among immigrants.
B. English came naturally for children of immigrants.
C. Most immigrants did not have to learn English.
D. Many immigrants struggled to speak English.

Answers

Answer:

D. Many immigrants struggled to speak English

Answer:

o

Explanation:

How do you get over ur ex?

Answers

Listen to sad music. There's a reason Adele is so magnetic after heartbreak.
Reflect on your breakup.
Hang with your Friends
Focus on the positives of the split ― then let yourself grieve.
Consider the rebound.
Try something new.
Give yourself time to process.

Get with someone else

Find the area of following compound shape

Answers

Answer:

I got 670 but I'm not 100% sure so if im not correct I apologize

What are the beliefs and values of fascism?

Answers

Answer:

Common themes among fascist movements include: nationalism (including racial nationalism), hierarchy and elitism, militarism, quasi-religion, masculinity and philosophy. Other aspects of fascism such as its "myth of decadence", anti‐egalitarianism and totalitarianism can be seen to originate from these ideas.

Explanation:

How did colonialism cause conflicts in East Africa after independence

Answers

Answer:

European nations divided Africa in order to get its resources.

Explanation:

hope this helps :)

What mistake did the European powers make in colonizing Africa?
Your answer:
O They joined forces with the African military
O They split Africa equally
O They split Africa unequally
O They ignored exisiting African boundaries

Answers

Answer:

c or d are the answers am I right

They joined forces with the African military

The Green Mountain Boys attacked Fort Ticonderoga because the colonists needed heavy_________to win the war.

Answers

Answer:

ammo or immunity

Explanation:

2. Which of the following events led to the decline of South Carolina's economy following
WWI?
A) A rising demand for cotton, high employment rates and low interest rates.
B) The high demand for farming technology, equipment and techniques.
C) A drop in demand for textiles, the subsequent collapse in cotton prices, and the decimation
of cotton crops by the boll weevil.
D) The high demand for factory workers, school teachers and public servants.

Answers

Answer:

ANSWER

Option C is the correct answer

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