Volcano

Question 1

Natural opening in the Earth’s surface

Answer 1

Volcano

Question 2

Funnel shaped depression at the top of a volcano formed as a result of a explosion

Answer 2

Crater

Question 3

Part of a wall of the crater collapses

Answer 3

Caldera

Question 4

Molten rocks inside the earth

Answer 4

Magma

Question 5

Magma that has been ejected out of a volcano

Answer 5

Lava

Question 6

3 types of volcano according to its shape

Answer 6

Shield volcano, cinder cone volcano and composite volcano

Question 7

Broad slightly doomed structure type of volcano

Answer 7

Shield volcano

Question 8

Steep, slope, wide crater and most abundant type of volcano

Answer 8

Cinder cone volcano

Question 9

Large and nearly perfect slope structure

Answer 9

Composite volcano

Question 10

5 type of volcano according to its erruption

Answer 10

Preatic or hydrothermal, phreatomagmatic, strombolian, vulcanian and plinian

Question 11

Stream driven eruption as the hot rocks come in contact with water

Answer 11

Phreatic or hydrothermal

Question 12

Stream driven eruption as the hot rocks come in contact with water

Answer 12

Phreatic or hydrothermal

Question 13

Violent eruption due to the contact between water and magma

Answer 13

Phreatomagmatic

Question 14

Weak to violent eruption characterized by a fountain lava

Answer 14

Strombolian

Question 15

Tall eruption that reach up to 25 km high with pyroclastic flow and ashfall tephra

Answer 15

Vulcanian

Question 16

Excessively explosive type of eruption of gas and pyroclastics

Answer 16

Plinian

Question 17

Volcano that has had at least one record of eruption during the past 10,000 years

Answer 17

Active volcano

Question 18

An active volcano that is not erupting but supposed to erupt again

Answer 18

Dormant volcano

Question 19

They are also called extinct or sleeping volcanoes could erupt but has not erupt for more than 10,000 years

Answer 19

Inactive volcano

Question 20

Can push through holes or cracks in the crust causing volcanic eruption

Answer 20

Magma

Question 21

When blank is ejected out of the volcano it is called blank when it cools and solidified it is called blank rocks

Answer 21

Magma. lava and igneous

Question 22

Fixed places within the mantle are oceanic lithosphere where rocks melt to generate magma

Answer 22

Hotspots

Question 23

What is the process of volcanic eruption

Answer 23

Magma inside the volcano has a high temperature as the magma continues heated it goes off the gas bubbles are trapped and expand causing the molten materials to swell also resulting in a gradual increase in pressure within the volcano

Question 24

Geothermal energy is generated in two ways

Answer 24

Geothermal power plant, geothermal heat pumps

Question 25

It promotes the heat from the fluid in the earth’s connection, concentrates it, and then transfer it to the building

Answer 25

Geothermal heat pumps

Question 26

It is where heat from within the earth changes water into steam (water in the gas phase) which turns steam turbines the generate electricity

Answer 26

Geothermal power plants

Question 27

What are the steps to generate in the geothermal power plant

Answer 27

First hot water second steam third turbine and generator 4 cooling tower 5 injection well