قطعه مهمه

Question 1

How did the French army deal with its deadly food problem?

Answer 1

They announced a reward to the person who could fix the problem

Question 2

What does the writer think about canning?

Answer 2

That it solved a problem everyone shared

Question 3

Why does the writer use the word although in Paragraph 3?

Answer 3

To show that these methods of keeping food safe had some issues

Question 4

What does the writer think about other methods of storing food before canning?

Answer 4

He believes that they were a little dangerous

Question 5

What does the writer say about Nicolas Appert’s method of canning?

Answer 5

It worked because he kept out the air and boiled the water

Question 6

Which word can we use to replace the word though in Paragraph?

Answer 6

However

Question 7

How did canning stop food from going bad?

Answer 7

It used heat on the jars to destroy the bacteria stop anything from coming in

Question 8

What is one important effect of building dams?

Answer 8

A rise in evaporation

Question 9

What causes a reduction in evaporation?

Answer 9

Not enough vegetation

Question 10

What helped open-source software?

Answer 10

Internet access

Question 11

What is one benefit of open-source software?

Answer 11

quick bug fixing

Question 12

What is one benefit of closed-source software?

Answer 12

Technical support from the company

Question 13

What are two examples of open-source software?

Answer 13

Firefox and Apache .

Question 14

Why is it difficult to get out? Katchab

Answer 14

Viscosity

Question 15

What important information about the research study does the writer mention in paragraphs (4) and (5)?
.

Answer 15

Manaus is in the Amazon

Question 16

What is the main topic of the passage?
The lamont -Doherty Team of scientists
Siberian pine trees in the Hangay mountains
the rise of the Mongolian empire under Genghis Khan
the success of the Mongol empire due to weather conditions

Answer 16

the success of the Mongol empire due to weather conditions

Question 17

Why does the writer mention Siberian Pines? 
Their tree rings were used in the study
the Mongols used them for firewood
They are the oldest trees in Mongolia
they grow in harsh condition

Answer 17

Their tree rings were used in the study

Question 18

What is one important idea related to the period between 1211- 1225 that the writer mentions in paragraph ?3
The weather was unusual 
Genghis Khan was born
the Mongol empire ended
it was a time of great

Answer 18

The weather was unusual

Question 19

What is one idea related to the Mongols that the writer mentions in paragraph 1? They disliked the rain
they controlled only Asia
they used a battle on horseback
tree ring scientists study Mongol history

Answer 19

tree ring scientists study Mongol history

Question 20

What does paragraph 1 say about inventories?
They help firms reduce costs and increase profits they help customers find the right items faster they make customers and managers happy
they always result in more profits

Question 21

What do firms do to avoid keeping higher than necessary inventories?

Answer 21

Bance the cost against the sales and profits