Step-by-step explanation
i don't understand option B
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:
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(3x+2 )(3x+5 )
hope this helps :)
Clara is 5yo
Li-Li is 2 years older then Clara, so
Li-Li is 7yo
Li-Li is half Jafi's age. so Jafi's age is twice Li-Li's
Answer: Jafi is 14yo.
Greater than 4 means either 5 OR 6, that means the probability of getting 5 or 6 is 2/6 ==>1/3
Theoretically she needs 3 Rolls to get a number greater than 4
