How did using metal help ancient chinese people increase food production.

Answers

Answer 1
How did using metal help ancient Chinese people increase food production? It led to wet farming for rice. It led to planting crops in rows. It led to stronger plows for tilling.

How they grew food: Rice and millet were the two main crops grown in Ancient China. Rice paddy (field) flooded from river. Rice needs a lot of water, so the Chinese figured out how to flood the fields from rivers to make rice paddies (fields for growing rice).

How did the Chinese improve farming?: By the Tang dynasty (618–907), China had become a unified feudal agricultural society again. Improvements in farming machinery during this era included the moldboard plow and watermill. Later during the Yuan dynasty (1271–1368), cotton planting and weaving technology were extensively adopted and improved.

Related Questions

According to the big bang theory, what happens if you reverse the galaxy motion and go back in time?.

Answers

The reverse of the Big Bang Theory simply means the scenario where the expansion of the universe reverses. Known as well as the "Big Crunch". This event supposedly would lead to the collapse of the universe.

When it falls under this, the cosmic scale then reaches 0. Subsequently, everything would become condensed into a very dense point.

A 1. 00-g sample of a metal x (that is known to form x2+ ions) was added to 0. 100 l of 0. 500 m h2so4. After all the metal had reacted, the remaining acid required 0. 0334 l of 0. 500 m naoh solution for neutralization. Calculate the molar mass of the metal and identify the element.

Answers

Answer:

7

Explanation:

reason why is beacuse bannanas

The fifth term of a geometric sequence is 781. 25. Each term of the sequence is of the value of the following term. Which recursive formula represents the situation?.

Answers

Answer: an = 5an-1

Explanation: Given fifth term of a geometric sequence is 781.25.

a5 = 781

Also, each previous term is 1/5 of the value of the current term.

Therefore, common ratio would be 5.

But we just need to find the recursive formula .

Recursive formula of a geometric sequence is given by

Plugging value of r in above formula, we get

Therefore, recursive formula would be   represents the situation.

The recursive formula that represents the situation is: [tex]t_n = a^{(3/4)} * 781.25^{(1/4)} * n^{(1/4)}[/tex].

What is recursive formula?

A recursive formula is one that defines any term in a sequence in terms of the term(s) before it.

Let the first term of the geometric sequence be 'a' and the common ratio be 'r'.

We are given that the fifth term is 781.25, so we can write:

a * [tex]r^4[/tex] = 781.25

We also know that each term is the value of the following term, so we can write the recursive formula:

t_n = r * t_(n-1)

Where t_n is the nth term of the sequence and t_(n-1) is the previous term.

To express the recursive formula in terms of 'a' and 'r', we can use the formula for the nth term of a geometric sequence:

[tex]t_n = a * r^{(n-1)[/tex]

Substituting the recursive formula, we get:

[tex]r * t_{(n-1)} = a * r^{(n-1)[/tex]

Dividing both sides by r^(n-1), we get:

[tex]t_{(n-1)} = a * r^{(n-2)[/tex]

So the recursive formula in terms of 'a' and 'r' is:

t_n = r * t_(n-1)

[tex]= r * (a * r^{(n-2)})\\\\= a * r^{(n-1)[/tex]

Now we can substitute the value of the fifth term (781.25) to solve for 'a' and 'r':

a * [tex]r^4[/tex] = 781.25

Dividing both sides by a, we get:

[tex]r^4[/tex]= 781.25/a

Taking the fourth root of both sides, we get:

r = [tex](781.25/a)^{(1/4)[/tex]

Substituting this value of 'r' into the recursive formula, we get:

[tex]t_n = a * ((781.25/a)^{(1/4)}){^(n-1)}\\\\= a^{(3/4)} * 781.25^{(1/4)} * n^{(1/4)}[/tex]

Therefore, the recursive formula that represents the situation is:

t_n = a^(3/4) * 781.25^(1/4) * n^(1/4)

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Which are points on the graph of y = 1. 5 + ⌈x⌉? select three options.

Answers

Answer:

1.3 ( 8>7)

Explanation:

In which year did the inca wayna capac die of smallpox? around 1527 around 1529 around 1530 around 1532.

Answers

Inca Wayna Capac died of Smallpox around 1527. He was the ruler of the

Inca Empire between 1493- 1525.

Wayna Capac traveled to the North region of Quito. He contracted the

disease known as smallpox. The disease came from Europe through

Spanish travelers . This was the period with high prevalence in which

millions of people were killed.

Although the vaccine was later made around 1977 , Inca Wayna Capac

died around 1527.

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Answer:

the answer is A) around 1527

Explanation:

Which of the following costs are relevant to a make-or-buy decision?.

Answers

Answer:

im not sure thanks

Explanation:

Which of the following is most clearly an example of a theme.

Answers

I think the best answer would be among the choices A is an example of symbolism

The number of employees in a company decreased from 40 to 28. What is the percentage decrease in the number of employees?.

Answers

Answer:

Answer: 30% decrease

Explanation:

[tex] = { \rm{ \frac{(40 - 28)}{40} \times 100\%}} \\ \\ = { \rm{30\%}}[/tex]

The number of employees in a company decreased from 40 to 28

[tex]=\frac{(40-28)}{40} \times 100 \%$$=30 \%[/tex]

percentage decrease in the number of employees is 30 % .

What is a percentage?

percentage, a relative value indicating hundredth parts of any quantity. One percent (symbolized 1%) is a hundredth part; thus, 100 percent represents the entirety and 200 percent specifies twice the given quantity. percentage. Related Topics: mathematics percentile.

What is percentage and example?

One percent (1%) represents the one hundredth, 2 percent (2%) represents two hundredths, 100% represents the whole, 200% twice the given quantity and so on… For example - 1 percent of 1000 mangoes is equal to 1/100 of 1000 or 10 mangoes.

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What is one drawback shared by both monopolies and oligopolies.

Answers

Answer:

They can harm consumers by fixing price

Line segment ab is a tangent to circle o at point b. Which type of triangle is always formed when points a,b and o are connected?.

Answers

The type of triangle is always formed when points a, b and o are connected is a right angled triangle.

A triangle is a polygon with three sides and three angles. There are different types of triangles such as scalene, equilateral, isosceles, right angled triangle.

A right angled triangle is a triangle in which one angle measures 90 degrees.

The angle between a tangent and radius is 90 degrees.

The type of triangle is always formed when points a, b and o are connected is a right angled triangle.

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The amount and the concentration of a salt solution.

Answers

Answer:

28 g

3.4 g

Explanation:

These problems only make sense if the percentage is by weight. To find the amount of salt, multiply the amount of solution by the percentage that is salt:

a) (80 g)(35%) = 28 g . . . . weight of salt

__

b) (20 g)(17%) = 3.4 g . . . . weight of salt

_____

Comment on percent

You know that % means /100, so 35% = 35/100 = 0.35.

Read the sentence. The snow and ice that arrived last night elated kids and adults alike when they awoke to a winter wonderland. What is the simple subject of the sentence?.

Answers

I suppose the simple subject would be the snow! Hope this helps =]

Consider the triangle shown. Which shows the sides in order from longest to shortest?.

Answers

Where is the triangle? Not enough information provided no triangle is displayed

Which of the following is not a characteristic of the type b personality?.

Answers

Answer:

Is more emotional & perspective, laid back.

What is essential to delivering a successful presentation.

Answers

Enthusiasm and Honesty. One of the most painful things in a presentation is listening to a presenter who is clearly bored and uninterested in the topic. ...
Focused on the Audience. ...
Ability to Keep Things Simple. ...
Being Personable. ...
Great Body Language.

Answer:

The principles of good communication.

Explanation:

Got it right on the quiz.

In a classic series of studies, solomon asch showed that an individual can conform to a group's judgment of the lengths of lines.

Answers

Based on research studies, in a classic series of studies, Solomon Asch showed that an individual can conform to a group's judgment of the lengths of lines "even when the group judgment was incorrect."

What is Solomon Asch Conformity Experiment?

Solomon Asch Experiment was conducted in 1955 to study the effect of majority or groups on individual beliefs and opinions.

The study's outcomes showed that people would conform with a group, even if they believe or understand it is wrong.

Hence, in this case, it is concluded that the correct answer is "even when the group judgment was incorrect."

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You have a worksheet in excel that will print as 10 pages.

Answers

Considering the situation described above, to ensure that the header row is printed at the top of each page, the user should start by "going to Page Layout tab."

The other steps to ensure that the header row is printed at the top of all the 10 pages include the following steps:

Click page set up under page set up a group.Go to print titles.Click Rows to repeat at top.Select the cell that contains the text you want to repeat.Click OK.

Hence, in this case, it is concluded that to print the header row is to click on the "Page Layout Tab."

The full question is:

You have a worksheet in excel that will print as 10 pages. how can you ensure that the header row is printed at the top of each page?

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James bennett also allocates wealth between youth and old age. He has no cash currently (in his youth), but will inherit $3000 in his old age. He can lend and borrow at the bank at 18% (that is, lending $1 in youth will give him $1. 18 in old age). He has an investment opportunity that costs $12,000 now in his youth and has a payoff of $15,000 in his old age. This is the only investment opportunity available to him. What is the most he can consume in his youth?.

Answers

The present value (PV) of $15,254.24 is the most James bennett can consume in his youth.

Given the following data:

Inheritance = $3000Interest rate = 18%Investment opportunity (youth) = $12,000Investment opportunity (old age) = $15,000

To calculate the most James bennett can consume in his youth:

First of all, we would determine the future value of James bennett from his investment and inheritance as follows:

[tex]FV = 15000 + 3000[/tex]

FV = $18000

Mathematically, the most James bennett can consume in his youth is given by this formula:

[tex]PV = \frac{FV}{(1+i)^n}[/tex]

Substituting the given parameters into the formula, we have;

[tex]PV = \frac{18000}{(1+0.18)^1}\\\\PV = \frac{18000}{1.18}[/tex]

PV = $15,254.24

Therefore, the present value (PV) of $15,254.24 is the most James bennett can consume in his youth.

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At midday, what is happening in the leaf of a plant?.

Answers

photosynthesis.
with the energy from the sun, the plant is growing more and more cells.

Which of the following men supported u. S expansionism in the pacific?.

Answers

it is wrong answer and bye

Answer:

William Jennings Bryan

Alfred Thayer Mahan

Emilio Aguinaldo

Explanation:

Incisors (front teeth) act as wedges in the human body. Which change would increase the mechanical advantage of incisors? a decrease in the distance of the teeth from the fulcrum an increase in the distance of the teeth from the fulcrum an increase in the thickness at the widest part of the teeth and no change in the length of the teeth an increase in the length of the teeth and no change in the thickness at the widest part of the teeth.

Answers

Based on the information given about the wedge, the option that will increase the mechanical advantage of incisors is D. an increase in the length of the teeth and no change in the thickness at the widest part of the teeth.

A wedge simply means a triangular shaped tool that's used as a simple machine. It is used for the separation of objects.

It should be noted that Incisors (front teeth) act as wedges in the human body and there can be an increase the mechanical advantage of incisors when there's an increase in the length of the teeth and no change in the thickness at the widest part of the teeth.

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Answer:

D

Explanation:

EDGE 22

In a paragraph of at least five sentences, answer the question: do you agree with picasso's claim that "the urge to destroy is also a creative urge"? include at least one specific reference to each excerpt in your response.

Answers

The question requires a personal answer and for that reason, I cannot write an answer for you, but I will show you how to write it.

First, you must think and reflect on Picasso's statement and what he meant by that statement. You can search for articles that help you think about this statement and decide whether or not you agree with it.

When you form your opinion about it, you can answer your question as follows:

Show your opinion of Picasso's claim.Show the reasons that created this opinion.Support or counter Picasso's claim.Show evidence that your opinion is correct.

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Answer:No I don't agree with Picasso claim that “The urge to destroy is also a creative urge

Explanation:because the meaning of creative urge according to https://english.stackexchange.com “is there a word for the urge to do something creative.”

Creative urge is a sudden and strong compulsion to just create something and the Urge to destroy being a creative urge is very wrong and does not even match the creative urge definition.so I don’t not agree with the definition that the urge to destroy is a creative urge.but instead the urge to destroy should be classified into another destructive meaning but not under creative urge.

Which of the following is an example of the self-fulfilling prophecy?.

Answers

Self-fulfilling prophecy is a psychological theory where what is believed or expected or said to a person comes to pass even if the belief is not a fact.

An example of  self-fulfilling prophecy is telling a person that they are so poor in mathematics. This might not be true but because the person is told repeatedly, the person begins to believe it and would eventually become poor in mathematics.

Self-fulfilling prophecy can be negative or positive. It depends on the way it is used.

Here are the options of this question:

telling blue-eyed people they are unattractive, then feeling bad and complimenting people with blue eyes to avoid feeling guilty telling people you hate boy bands, then taking your child to a boy band fan club meeting telling someone with dyslexia she cannot learn to read, leading her to become illiterate even though she could learn to read with a bit of extra effort telling your spouse you hate his cooking, then taking over the cooking yourself to avoid food poisoning

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What change in a population would you expect to see if a selection pressure was against the trait of a dominant allele in that population?.

Answers

Answer:

The change in population in the given condition would be an increase of true recessive traits in the population and there would be only a few individuals with dominant traits.

In case of selection pressure was against the dominant trait, then individuals of the population who have true recessive alleles would have an advantage over the heterozygous and dominant individuals of the population.

There would be very few individuals carrying its dominant genotype and it may eventually be extinct, however, it would be still dominant. The recessive trait would just become more prominent rather than becoming dominant.

Thus, the number of recessive traits would increase in population, and the number of dominant decrease to numbers.

Explanation:

Which scenario can be represented using the inequalities below? 1. 25 < x < 1. 5 a container of milk costs at least $1. 25 but less than $1. 50. A student spends at least 1 hour 15 minutes, but no more than 1 hour 30 minutes on homework. A tip added to a restaurant bill is less than or equal to 25% or less than or equal to 50%. The point value of a test item is more than 1. 25 points and less than 1. 5 points.

Answers

Answer:

Explanation:22

Holle i mean I mean I mean hello

Evaluate 4. 7j – 6. 8k when j = 5 and k = 3. Enter your answer in the box.

Answers

7j-6.8k.

now we substitute the given values for the variables

7(5) - 6.8(3)

Simplify

35 - 20.4

= 14.6
Hope this helps!

An 85-foot wire is tied from the top of a utility pole to the top of the building as shown below. Find d, the distance from the pole to the building.

Answers

The distance from the pole to the building is 79 feet

The relationship between the utility pole and the 85-foot wire, can be adjusted to fit in the description of a right-angled triangle.

So, the distance (d) can be calculated using the following sine function.

[tex]\sin(68) = \frac{d}{85}[/tex]

Multiply both sides of the equation by 85

[tex]85 \times \sin(68) = \frac{d}{85} \times 85[/tex]

Cancel out the common factors

[tex]85 \times \sin(68) = d[/tex]

Evaluate sin(68)

[tex]85 \times 0.9272 = d[/tex]

Evaluate the product

[tex]78.812 = d[/tex]

Approximate

[tex]79= d[/tex]

Rewrite the equation

[tex]d = 79[/tex]

Hence, the distance from the pole to the building is 79 feet

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Which of the four substances has the lowest density.

Answers

Answer:

ice, wax,Alcohol, i think

The distance between two cities on a map is 3. 5 centimeters. The map uses a scale in which 1 centimeter represents 20 kilometers. What is the actual distance between these two cities in kilometers?.

Answers

Answer:

70km

Explanation:

[tex] \frac{20}{1} \times 3.5[/tex]

= 70

Emerson’s remarks in the excerpt most directly reflected which of the following developments during the early nineteenth century?.

Answers

Answer:

A the emergence of a nation culture

Explanation:

The reflected development during the early age of Emerson remarks was the even of emergence of a nation culture.

I hope this helps!

Emerson’s remarks in the excerpt most directly reflected the emergence of a national culture. Therefore option A is correct.

What is Nation Culture?

The norms, behaviors, beliefs, practices, and values that the people of a sovereign nation share are referred to as national culture (e.g., a Chinese or Canadian national culture). It alludes to particular traits like language, religion, ethnicity, and racial identity, as well as cultural history and customs.

According to the study, organizational values may be categorized into four categories: power distance, individuality vs collectivism, masculinity against femininity, and uncertainty avoidance.

National cultural values are societally accepted conceptions of what is admirable, proper, and desirable. A national society's preferences for addressing problems with internal integration and exterior adaptation pose a threat to its existence.

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