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What happens when Volcanoes erupt? Grade 9

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

These are the primary effects of volcanic eruption EXCEPT

a)

Volcanic Gases

b)

Tephra

c)

Pyroclastic flows

d)

Lahar

2.

Is landslide secondary effects of volcanic eruption?

a)

Yes

b)

No

c)

Maybe

d)

All of the Above

3.

What is the two categories effects when volcanoes erupt?

a)

Volcanic Eruption

b)

The Primary and Secondary effects

c)

Third Effect

d)

None of the Avobe

4.

What is the correct order of 5 different types of volcanic eruption?

a)

Phreatic. strombolian, Vulcanian, Phreatomagmatic, Plinian

b)

Phreatomagmatic, Phreatic, Strombolian, Vulcanian, Plinian

c)

Phreatic, Vulcanian, Strombolian, Phreatomagmatic, Plinian

d)

Phreatic, Phreatomagmatic, Strombolian, Vulcanian, Plinian

e)

All are Wrong

5.

When a vulcanian erupt it is characterized by tall eruption column, how many km high can it reach with pyroclastic flow and ashfall tephra?

a)

12km

b)

15km

c)

20km

d)

25km

e)

43km

6.

Mixtures of water, rock, ash, sand and mud that originate from the slopes of a volcano

a)

Lahars

b)

Land Slide

c)

Magma

d)

Dirty Water

e)

Phreatic

7.

Streams of molten rock that pour or ooze from an erupting vent.

a)

Magma

b)

Molten Rocks

c)

Lava

d)

Lava Flows

8.

In volcanic gases all magma contains dissolved gases . These gases are mainly steam, carbon dioxide and compounds of?

a)

Co2

b)

Sulfur and chlorine

c)

Iodine and chlorine

d)

Sulfur, Co2

9.

The following are some secondary effects of volcanic eruption, Except what?

a)

Cost of insurance claim

b)

Business forced to close

c)

Food/water supply interrupted

d)

Business Opening

10.

What was our discussed topic (Answer must be Capital Leter), Example( I LOVE YOU)

(a)