Excerpt from Stuff Matters
By Mark Miodownik
At some point humans made the discovery that would end the Stone Age and open the door to a seemingly unlimited supply
of the stuff. They discovered that a certain greenish rock, when put into a very hot fire and surrounded by red-hot embers,
turns into a shiny piece of metal. This greenish rock was malachite, and the metal was, of course, copper. It must have been
the most dazzling revelation. Suddenly the discoverers were surrounded not by dead inert rock but by mysterious stuff that
had an inner life. They would have been capable of performing this transformation with only a few particular types of rock,
such as malachite, because getting it to work reliably depends not just on identifying these rocks but also on carefully
controlling the chemical conditions of the fire. But they must have suspected that those rocks that didn't work, that remained
obstinately rock-like however hot the fire became, had hidden secrets. They were right. It's a process that works for many
minerals, although it would be thousands of years before an understanding of the chemistry required (controlling the
chemical reactions between the rock and the gases created in the fire) led to the next real breakthrough in smelting. In the
meantime, from around 5000 BC, early metal smiths used trial and error to hone the process of the production of copper. The
making of copper tools initiated a spectacular growth in human technology, being instrumental in the birth of other
technologies, cities, and the first great civilizations. The pyramids of Egypt are an example of what became possible once
there were plentiful copper tools. Each block of stone in each pyramid was extracted from amine and individually hand-
carved using copper chisels. It is estimated that ten thousand tons of copper ore were mined throughout ancient Egypt to
create the three hundred thousand chisels needed. It was an enormous achievement, without which the pyramids could not
have been built, however many slaves were used, since it is not practical to carve rock without metal tools. It is all the more
impressive given that copper is not the ideal material for cutting rock since it is not very hard. Sculpting a piece of limestone
with a copper chisel quickly blunts the chisel. It is estimated that the copper chisels would have needed to be sharpened
every few hammer blows in order for them to be useful. Which sentence shows that the human civilization has been positively affected by the discovery of copper A) in the meantime from around 5000 BC early metalsmith‘s use trial and error to hell in the process of the production of copper be it is estimated that 10,000 tons of copper or for mine throughout ancient Egypt to create the 3000 chisels needed see the making of cover tools initiated a spectacular grown and human technology being instrumental in the birth of technologies cities in the first great civilizations de it is estimated that the copper chisels would have needed to be sharpened every few hammer blows in order to them to be useful

Answer:

the making of cover tools initiated a spectacular grown and human technology being instrumental in the birth of technologies cities  

Explanation:

The text shows how the manipulation of fire and malachite for the creation of copper was very important for the evolution of societies and the construction of modern and technological cities. As seen in the text, the civilization of ancient Egypt, one of the most successful and modern of antiquity, depended heavily on the manipulation of copper to succeed in its works, just as this element was important for the manufacture of tools and objects .

Of course, this manipulation was not born overnight and it took a process that took years of trial and error, capable of developing the knowledge necessary to use this tool.

Why is it important to study history of language

Help me out . Struggling

What does Esperanza learn about her new life?

a. She should teach the workers new things, just as they are teaching her.

b. She does not belong with the other workers and should leave.

c. She can fit in and contribute if she works hard.
I will give brainilest to who ever answer this question

why should we be spending more time raising awareness for depression

Explain how a word can be a morphemic noun and a syntactic adverb in the same sentence.

Question 16(Multiple Choice Worth 5 points)
Which best describes memory triggers?
They are not very helpful.
They help things stick in our minds.
They are a way to chunk material.
They are a way to study material.

Why does Mrs. Price give Rachel the sweater?
A
She wants to embarrass Rachel.
B
She thinks Rachel is cold and could use it.
С
She saw Rachel wear it yesterday.
D
She believes it belongs to Rachel.

Which details from the excerpt best support the conclusion that this story is about the creation of the world? Select two options.

Please help me I will give Brianliest


In a sentence or two discuss the elements in lord byrons she walks in beauty that’s are characteristically romantic

This problem cannot be
solved by John Change into Active voice

Write a letter to your friend to narrate about the recent field trip you had in your school. ​

The course title is listed at the bottom of each page.

What effect does an allusion have on the reader?

An allusion helps the author uses creative figure of speech to engage the reader.
An allusion helps the author distract the reader from specific things within the text.
An allusion within the text does not help with the author convey the message to the reader.
Using an allusion within the text does not help an author with their point.

can someone write a persuasive essay over the topic "is this the country the founding fathers envisioned"

what kind of figurative language is used here ? every time he touches his guitar, it sings

Please help!! 10 points

4. Use what you know about word endings to figure out what "gruffness" means.
A.how gruff someone sounded
B.gruffer than anyone else
C.not able to sound gruff
D.to make someone sound gruff
​

What’s the answer to this question

Tapn
SECTION A-WGRAM
A1.Rearrange the following words and phrases to
(a) fast foods/their/making/children/are/staple diet
(b) causing/is/among/a great alarm/health experts/it
(c) need/that/get/healthy food/welto ensure/our children

Is the word in bold letters an adjective, predicate adjective, or adverb?

The concert pianist plays the piano *well*.

1. Which of the following would describe a pardoner?
A church official who could preach and distribute indulgences.
A man who goes around saving people.
O A preacher of the church.
A holy man who baptizes sinners
help me :((

describe how you would organize your classroom if u were a teacher

The tone of this speech could best be described as expressing a feeling of

fear.
hope.
anger.
pride.

9 PRACTICE
a Complete these sentences with adjectives from activity 7a.
1. I couldn't understand the lesson about the solar
system
Some people thought it was... but I was really
2. We couldn't take our eyes off the game. It was really ...
Peter's a real soccer fan, he was the most ... of all of us.
3 Shes a.
singer, she's got a fantastic voice.
4 Is anyone in the dass ... in starting a drama club? Yes. T
think it's an ..
idea.
5 We thought it was very ... when we put a mouse on the
teacher's desk, bur she wasn't ..
6 The tourists were .. when they discovered they would
have to pay $500 for a visa.
when I talk to English people and I can't
think of the words I want to say.
8 It was a hor day and he couldn't understand the lesson. He
felt both ... and
at all.
7 1 find it very
9 I can't understand the way they use the definite article in
English. It doesn't make sense; it's really ...
10 My parents were ...
when I told them I wanted to be an
astronaut. They didn't speak for about five minutes. Then
my
Father said: "That's an ... idea, but if that's what you
want, you must do it."

a research is systematic because the researcher ​

How to spell how i need it for English test

Can someone help. Struggling

Question 1
Refer to the Newsela article, "Doctoral Student Played a Big Part in First Black Hole Photo."

Part A

Why did people believe it would be impossible to view a black hole in space?


Black holes absorb light.

They are too dangerous to approach.

Black holes are too far away.

They are hidden by other objects in space.
Question 2
Part B

Which evidence supports the answer in Part A?

Select two correct answers.


"Messier 87 is about 55 million light years from Earth."

"Black holes can even pull light into themselves."

"A galaxy is a system of millions or billions of stars."

"Since we need light to see, we cannot see black holes."

The repetition of the statement "I have a dream" is an example of what rhetorical device?


Question 8 options:


first person plural



parallel structure



refrain



allusion

Read this excerpt from "Everyday Use":
Have you ever seen a lame animal, perhaps a dog run over
by some careless person rich enough to own a car, sidle up
to someone who is ignorant enough to be kind to him?
That is the way my Maggie walks.
What can the reader infer about Maggie's character from the way the narrator
describes her?