GEO TEST Flashcards
WHAT ARE CONVERGENT PLATE BOUNDARIES
where 2 plates collide into each other until 1 slides under the other(subduction)
MARK Y IN EXAM
WHAT ARE DIVERGENT PLATE BOUNDARIES
When two plates move apart
Which of these is NOT evidence for plate tectonic theory
A. Jigsaw fit
B. Fossil evidence
C. Volcanoes
D. Convection currents
C. Volcanoes
How are earthquakes formed?
As an oceanic plate subducts under a continental plate tension forms to to pressure and friction which leads to energy realising as shockwaves
How are volcanoes formed?
At the subduction zone friction causes the oceanic plate to melt and pressure rises forcing magma to rise upwards as a volcano
What is the epicentre?
The point on the earths surface directly above the focus of an earthquake
What is the focus?
The point in the earths crust where the earthquake happens
Explain why the impacts from the Haiti earthquake were so devastating for people
people died, houses destroyed, people couldn’t go to work, more than 200,000 killed and over 300,00 injured,1.5 went homeless, 70% of infrastructure was destroyed, hygiene was poor which lead to diseases
One short term response to the Haiti earthquake
people moved into shelters as because they lost homes
Which of these facts are false about the Indian ocean tsunami?
It occurred on 26th December 2004
water moved slowly at 100mpph
there was no warning system in lace
the Indonesian island of Sumatra was worst affected
water moved slowly at 100mpph
explain how an earthquake triggered the Indian ocean tsunami in 2004
the Indian Australian plate was subducted under the Eurasian plate causing an earthquake under the ocean which caused the water to dsplace.AS the earthquake happened water displaces and water is forced upwards and the energy spreads out, waves get bigger the closer they get to land
Which of these statements do not make up the definition for sustainability?
needs to be balanced between social ,economic and environmental
must meet the needs of the future population
needs to be short term
cannot impact current population negatively
needs to be short term
Explain how nuclear energy can be described as sustainable
recyclable energy that doesn’t require fossil fuels to create, this mean that the energy is greener and doesn’t emit as much co2
Explain how nuclear energy can be described as unsustainable
only has a limited life and once it is no longer useable for the creation of energy, it must be disposed of carefully which can cause environmental damage
Give two environmental impacts of the Chernobyl disaster
loss of habitat, radiation levels in the atmosphere, re wilding
define superpower nations
a superpower is an extremely powerful, country, especially one capable of influencing international events and the acts and polices of less powerful countries. its power can be felt all over the world
BRIC countries
Brazil, Russia , India, China
MINT countries
Mexico, Indonesia, Nigeria, Turkey
explain why “the empire on which the sun never sets “was described as the British empire
The British empire has so many territories so it will cross loads of time zones. this means that the sun will always shine somewhere n the British empire
explain how the second world war contributed to the fall of the British empire
USA and Russia had more nuclear weapons and larger population than the British empire. they also had more money. Britain as well had to focus on the war whilst helping their other territories which was a massive problem
explain how Indian independence contributed to the fall of the British empire
- India was the largest and most profitable British colony
- when India gained independence in 1947, they left the empire to show others that if they can leave others can
UN secuirty counicl
Decides when to send the un troops or peackeepers, apply sanctions. They orthorise the use of military force against a country. Authorise a UN peacekeeping.
IPCC
The IPCC is an organisation of governments that are members of the united nations or NATO. The IPCC currently has 195 members. The IPCC are leading international body assesments of climate change
