Political instability would be your answer
Geothermal heat- to provide energy for process like subduction, melting and metamorphism (to drive plate tectonics)
solar energy- for processes like erosion, weathering and transport
Answer:
In 2019, Australia exported a total of $284B, making it the number 19 exporter in the world. ... The most recent exports are led by Iron Ore $67.5B, Coal Briquettes $51.5B, Petroleum Gas $34.1B, Gold $25.4B, and Aluminium Oxide $5.6B
Meteor = Space rock
Asteroids= small rocky object
Comets= ball of ice
Planet= travel around starts
Orbital radii= average distance from sun
I think B but I might be ! wrong !
