The correct option in A.
Lines 20-21 ("Nobody . . . died")
<h3>Briefing:</h3>
Nobody has succeed in this thing , and many have died.
This line belong to the 20-21 line for the phrase When fictional Swedish scientist went to the north pole for set up hydrogen- powered balloon.
<h3>Who is Swedish scientist ?</h3>
Only hydrogen offers helium-like lift; in fact, hydrogen offers 7-8% more lift than any other gas. In atmospheric sounding balloons outside of North America, hydrogen is frequently employed.
<h3>What is hydrogen- powered balloon?</h3>
Arrhenius, who was originally a physicist but is frequently referred to as a chemist, was one of the pioneers of the field of physical chemistry. He was the first Swedish Nobel laureate when he won the Chemistry Prize in 1903.
<h3>Why did they stop using hydrogen in balloons?</h3>
Despite being lighter than air, hydrogen is flammable, and since oxygen is present in the air, there is a chance of an explosion and fire. Since helium is a non-combustible gas and lighter than air, it is frequently used to fill balloons.
To know more about Passage visit:
brainly.com/question/26999874
#SPJ4
Answer:
category name | blue to red | orange to red | orange to blue
category amount | 4 blue to 1 red | 1 orange to 1 red | 1 orange to 4 blues
Answer:
8
Step-by-step explanation:
We can start by subtracting 3 from both sides of the equation:
7(x+2) + 3 - 3 = 73 - 3
We will get:
7(x+2) = 70
Now we have to figure out what times seven gives us 70:
70/7 = 10
We get the answer 10. Now we know that:
x+2 = 10
We can now subtract two from both sides of the equation:
x+2-2 = 10-2
We will get:
x = 8
