Volcanoes

Question 1

Where in the world do u find volcanoes

Answer 1

The pattern is that volcanoes meet at plate boundaries
An example is a cluster around the Pacific Ocean
The outlier is the volcanoes in the middle of the ocean

Question 2

Explain the difference between the appearance of shield and composite volcanoes

Answer 2

Shield volcanoes are flat whilst composite volcanoes are tall. This is because shield volcanoes has lava that takes longer to cool down, flowing longer distances. Composite has lava that travels short distances before cooling.

Another difference is the lava types. Shield volcanoes has thin and runny lava , whilst composite has thick, sticky lava

Question 3

What are the most destructive volcanic effects, primary and secondary?

Answer 3

Sec-settlements and forests being destroyed.
Lots of money is going to be lost
Will lead to people being homeless and will be forced to relocate

Pri - ash
It kills crops and collapses buildings
Leads to crops failure and homelessness

Question 4

How does a waterfall form?

Answer 4

Waterfall forms when rivers flow over different layers of rocks by erosion
The soft layer erodes faster than the hard rock layer
This causes the hard rock layer to hang over the channel
Overtime the hard rock layer collapses creating the waterfall

Question 5

What happens in hotspot?

Answer 5

The earths center creates a huge column of rising lava
This rises through the crust

Question 6

What are social impacts of Christchurch and Haiti?

Answer 6

Christchurch - 185 people died
-7000 people were injured

Haiti - 300k people died
- 2m people were injured

Question 7

What are economic impacts of Christchurch and Haiti?

Answer 7

Christchurch - 28 billion dollars of damage was caused
- would take 50 years to recover

Haiti - 7.8 billion dollars of damage was caused
- the port was completely destroyed