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The Mt. Pinatubo eruption in 1991 was one of the largest eruptions in history. C

ID: 158026 • Letter: T

Question

The Mt. Pinatubo eruption in 1991 was one of the largest eruptions in history. Considering how large and violent it was, why were casualty numbers so relatively low (~700)?

the eruption was predicted and the area was evacuated in time

there was only a small amount of lava that reached the surface

the coincident hurricane cooled the volcano in time to stop the flows

4 there were no people living near the volcano

What is today’s population and what is it projected to increase to by 2050?

7 billion, 9 billion

7 billion, 12 billion

7 billion, 15 billion

8 billion, 9 billion

6 billion, 7 billion

1

the eruption was predicted and the area was evacuated in time

2

there was only a small amount of lava that reached the surface

3

the coincident hurricane cooled the volcano in time to stop the flows

4 there were no people living near the volcano

What is today’s population and what is it projected to increase to by 2050?

7 billion, 9 billion

7 billion, 12 billion

7 billion, 15 billion

8 billion, 9 billion

6 billion, 7 billion

Explanation / Answer

The Mt. Pinatubo eruption in 1991 was one of the largest eruptions in history. Considering how large and violent it was

casualty numbers so relatively low because

the coincident hurricane cooled the volcano in time to stop the flows

so answer is

3   the coincident hurricane cooled the volcano in time to stop the flows

2.

The current world population is 7 billion

The current world population of 7 billion is projected to increase by 1 billion over the next 12 years and reach 9 billion by 2050,

so answer is

7 billion, 9 billion