Answer:
The answer is C
Explanation:
I don't know why but that was the answer
Which of the following scenarios would best indicate a farmer using Green Revolution agricultural methods?
A) A farmer switches from a plow pulled by a horse to a plow pulled by a tractor
B) A tribe begins to rely on irrigation to water their crops, which means they no longer engage in shifting cultivation
C) Scientists working for a German corporation develop an herbicide that kills 98% of unwanted vegetation in their lettuce crops, but does not damage the lettuce.
D) Indonesian farmers harvest coffee beans and then burn the remaining vegetation, planning to return to the field in six years.
E) An American corporation opens a 600 acre farm in Costa Rica which harvests $60 million worth of sugar cane annually.
Answer: C. Scientists working for a German corporation develop an herbicide that kills 98% of unwanted vegetation in their lettuce crops, but does not damage the lettuce.
Explanation:
The Green Revolution, refers to the research and technological initiatives that brought about an increase in agricultural production. In this situation, the use of pesticides, herbicides, and high yield varieties led to an increase in the production of crop.
The best situation that indicates a farmer using Green Revolution agricultural method is a scientists working for a German corporation develop an herbicide that kills 98% of unwanted vegetation in their lettuce crops, but does not damage the lettuce.
Rachel is studying the causes, consequences, and treatments of mental illness. She samples 100 people diagnosed with generalized anxiety disorder. She provides each individual in her sample w
either a new untested drug, a placebo, or a nocebo (which occurs when a person expects negative side effects of a medication), Rachel measures sympathetic nervous system arousal a week bef
and a week after the study. The results of the study appear in the following graph.
70
Answer:
part a
random assignment ensured each participant had the same chance of being in each group so that means that the results can be more trusted as it leaves less room for data skews based on unfair grouping of participants.
the research method used was an experiment it was not effective, because as shown in the graph the results from the placebo and new drug are the the same so there was no affect on the levels of arousal with the new drug.
elements that limit the generalizability of her study include environmental factors of participants, length of time using drug, small sample size, and limited information about participants. these all affect the generalizability because each of these elements could vary greatly among test and especially in just a 100 person sample size it is hard to conclude that the results will be the same with people everywhere with GAD.
part b two physiological reactions she could have used are increased heart rate and blood pressure because these are typical signs of symptomatic nervous system arousal.
part c GABA blocks impulses between nerves in the brain cells and with general anxiety disorder there is lots of stimuli's and when GABA is taken it can help create a calming affect which reduces anxiety and helps people to relaxed rather than be anxious or on edge.
The relationship on the graph is showing that to have a good performance the optimal amount of arousal must be present because having too much arousal, like in many cases in which Rachel is studying, can cause anxiety and stress, and on the other side having not enough arousal can lead to consequences of not being able to sustain attention and lacks motivation.
Explanation:
CAUSES is a project determining the clinical impact of DNA sequencing for undiscovered diseases in British Columbia, and further observations are as follows:
Causes observation:Random allocation is the way of gathering people into groups based on randomness, intending to produce outcomes that can be attributed to experimental procedures and methodologies at the end of the trial.The research methodology is experimental research, which examines the cause-and-effect relationship and examines the effect of a psychoactive substance through pre-and post-testing. We can see from the graph that a certain drug has a negative effect, while the quasi drug group and placebo have the same effect.As a result, we can conclude that taking any medicine doesn't alleviate anxiety.Find out more information about the observation here:
brainly.com/question/9679245
Which of the following describes a feature of the original central business district (CBD) found in most cities?
A. Manufacturing space is located in the middle of the original CBD
B. Residential space is genuinely not permitted in the original CBD
C. Retail spaceis generally not permitted in the original CBD
D. Land values are the highest of any zone in the metropolitan area
E. Land values are the lowest of any metropolitan area
Answer:
D. Land values are the highest of any zone in the metropolitan area
Explanation:
Which of the following statements explains the cost and distance relationship illustrated in the model in relation to the urban area's residential patterns?
A. Since land is more expensive in the suburbs wealthier families build larger single-family homes in zone five in areas that provide amenities such as private schools for their children
B. Land is cheaper near the central business district(CBD)resulting in the construction of low income apartments and giving low income residents access to the amenities of the CBD
C. The lower cost of land farther from the CBD makes it affordable to build single-family homes in zones 5 and 5 for a middle income and high income residents who desire to move into less crowded areas
D. People do not live in the CBD because of the traffic congestion, high cost of land, and lack of amenities such as museums and restaurants
E. Population density increases with the distance from the CBD and land prices decrease allowing residents of all income levels to move farther away from zone 2
Answer:
AP classroom said its C
Explanation:
trust me bro
Read the excerpt from "Black Hole Beginnings."
As the nuclei meld, a smidgen of their matter vaporizes into energy. This creates a tremendous burst of furious noise, motion, and another by-product: star shine!
Which statement correctly defines the cause-and-effect relationship described in this excerpt?
Motion is the primary cause of furious noise.
Star shine is an effect of matter vaporizing into energy.
A burst of furious noise is an effect of star shine.
Star shine is the primary cause of nuclei melding.
Answer:
B
Explanation:
How do roots help plants meet their needs
Answer:
The roots help plants in anchoring them to the soil. They also serve as transport systems, allowing the plant to suck up water and dissolved minerals from the soil that it needs to grow. Some plants can store food in roots in the form of carbohydrates (sugars and starches).
Develop an argument that explains whether or not hate speech - speech that offends or insults groups based on race, religion, sexual orientation, or disabilities - should be illegal in the United States.
Answer:
It flat out shouldn't be illegal
Explanation:
There is no argument on the face of the planet that can accurately defend why it is moral to take speech rights away due to subjective feelings i would actually argue speech is an axiom and taking that over someone being offended is evil
Describe ONE difference between the level of industrialization typically seen in more developed countries and the level seen in less developed countries.
I'll use the countries.. America and Pakistan, Americas industries is more advancely and more largely developed then Pakistan's industries
Industrialized countries have a greater capacity to produce goods and services than other countries.
Industrialization is a term that refers to the production of goods and services. Industrialization is related to the development of new technologies and machines to optimize production processes.
According to the above, more developed countries have a greater capacity to produce goods and services, such as the United States, Russia, Japan, and China, because much of its economy is based on the production of services and goods. On the other hand, less developed countries (also known as developing or underdeveloped countries) do not yet have a high capacity to produce goods and services. On the contrary, their economies are based on other fields such as agriculture or resource extraction.
Learn more in: https://brainly.com/question/7721379
In a month,the earth spins nearly 30 times . How many tides, and how many low tides , does this result in?
Answer:
two tides
Explanation:
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. It takes six hours and 12.5 minutes for the water at the shore to go from high to low, or from low to high.
You have 400 mg of a radioisotope with a half-life of 5 minutes. How much will be left after 30 minutes?
A 6.25mg
B 12.5 mg
C 100 mg
D 50 mg
You have 400 mg of a radioisotope with a half-life of 5 minutes. The time that will be left after 30 minutes is 6.25 mg. The correct option is A.
What are radioisotopes?The radioactive isotopes of an element are called radioisotopes. They can alternatively be described as atoms with surplus energy in their nucleus or unstable neutron-proton combinations.
A radionuclide is an unstable nuclide with too much nuclear energy. The extra energy can either be transferred to one of the nucleus' electrons to release it as a conversion electron, released from the nucleus as gamma radiation or used to build and emit a new particle from the nucleus.
Nuclear transmutations: natural radioactivity. Less than a hundred radioisotope types are recognized, yet there are more than a few thousand. Accelerators and Research Reactors for Man-Made Radioactive Isotopes.
If the half-life is 5 minutes, then 30 minutes is equivalent to 6 half-lives. So, after six successive half-lives, the 400 mg of the radioisotope would have a mass of 400(0.5)⁶ = 6.25 mg.
Therefore, the correct option is A. 6.25 mg.
To learn more about radioisotopes, refer to the link:
https://brainly.com/question/13076859
#SPJ2
Helppp please helppppp
"Jurors reached a verdict ..."
There are jury trials in every city every day, and this picture doesn't say which one it's asking about. But another panel in this question asks about the Derek Chauvin trial, so maybe this picture is asking about that one.
In the Derek Chauvin trial, jurors reached a verdict after a brief deliberation.
"The helicopter recently ..."
In the United States, thousands of helicopters fly every day, and this picture doesn't say which one it's asking about.
One helicopter that was in the news many times in the past week is the one named "Ingenuity". It was attached to the new "Perseverence" rover that just landed on Mars, so maybe this picture is asking about that one.
The tiny "Ingenuity" helicopter completed its first and second flights last week.
Derek Chauvin was found guilty on three counts in the death of George Floyd, in a trial that ended last week in Minneapolis.
"According to the song ..."
At any moment of the day or night, there are thousands of songs being played, sung, or hummed in the US. This picture doesn't say which song it's asking about, so there's no way to tell anything about what the song says.
