TECTONICS - people living in tectonic areas

Question 1

how many people live close to volcanoes around the world?

Answer 1

500 million people close or on them

Question 2

what are the four main reasons people live near volcanoes?

Answer 2

minerals
geothermal energy
fertile soils
tourism

Question 3

why are minerals present near volcanoes?

Answer 3

• magma rising from inside the earth contains a range of minerals
• hot gasses elapse through the vents of active volcanoes and bring minerals to the surface

Question 4

what minerals are present near volcanoes?

Answer 4

tin
gold
copper
silver
diamonds 
sulphur

Question 5

what is geothermal energy?

Answer 5

heat energy from the earth

Question 6

what is a disadvantage of mineral collecting?

Answer 6

can be dangerous to people collecting them, especially sulphur

Question 7

how does geothermal energy work?

Answer 7

the heat from underground steam drives turbines which produce electricity

• or steam heats water supplies
• if steam doesn’t occur naturally they drill holes in rock

Question 8

how much of Icelands energy comes from geothermal?

Answer 8

2/3’s from steam powered turbines

- it has over 200 volcanoes and 800 hot springs

Question 9

what can geothermal energy also be used for?

Answer 9

recreational purposes

- blaa lonio or the blue lagoon is pool of seawater that is naturally heated by heat below the surface

Question 10

why are there fertile soils near volcanoes?

Answer 10

volcanic rocks are rich in minerals, but they need thousands of years to weather and get broken down before they form rich soils

Question 11

what is the Naples soil like?

Answer 11

very rich nutrient soils due to two volcanoes eruptions 35,000 and 12,000 years ago

Question 12

why is tourism a thing around volcanoes?

Answer 12

• warm bathing lakes, hot springs, bubbling mud pools and steam vents (geysers)

Question 13

what are some popular geysers?

Answer 13

old faithful in yellow stone and various places in New Zealand