Plate Tectonics
When two tectonic plates are moving away from each other this is called a ____________ plate boundary.
Divergent
What is formed when molten rock, or magma, bursts through a weakness in the Earth’s crust?
Volcanoes
The process in which water vapour becomes liquid.
Condensation
In the greenhouse effect, ______ heat is retained, _______ heat escapes back into space.
What is a tropical storm characterised by high winds moving in a pattern
Cyclone
How do transform fault boundaries move?
Scrape along each other
What is the scale used to measure the force of earthquakes?
The Richter Scale
Photosynthesis and Respiration are involved in which cycle?
Carbon Cycle
Name 2 impacts of global warming.
Melting glaciers and sea ice
Impacts on organisms - endangered and extinct animals
Sea level rise
Precipitation changes
What way do cyclones blow in the Southern Hemisphere?
Clockwise
What was the land mass of the continents called 250 million years ago?
Pangea
Where was the biggest earthquake in history recorded?
Chile
What are 3 of the global systems that sustain life on earth
Water, Carbon, Nitrogen
What does CFC stand for?
Chloroflurocarbons
Volcanoes that occur on tectonic plates are said to occur due to ____ _________ on the asthenosphere
Hot spots
What is more dense? Oceanic Crust or Continental Crust
Oceanic Crust
What are the 3 types of volcanoes?
Composite, Cinder Cone, Shield
What are the 4 phases of the water cycle?
Precipitation, evaporation, Condensation, transpiration
3 industries that contribute to Australia's CO2 emissions.
Agriculture, Waste, Industrial processes, Energy - transport, Electricity.
What 3 events can cause a tsunami?
How many major tectonic plates are there in total?
15
What percentage of earthquakes occur at plate boundaries?
90%
78% of our atmosphere is what gas?
Nitrogen
Atmospheric gas, with the chemical formula CH4, that is over 20 times more effective at trapping heat than carbon dioxide
Methane
Name 1 impact of volcanoes on each of the following spheres:
Atmosphere
Hydrosphere
Lithosphere
Biosphere
Atmosphere: Dust, gases and rock released into the air, affecting ozone, global cooling
Hydrosphere: tsunamis, pollution of water ways
Lithosphere: alters land formation, creation of new land masses, earthquakes
Biosphere: destruction of vegetation and habitat, death and injury, changes to ecosystems, infrastructure destruction, psychological and emotional problems