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A _______ is a long period of time with no rain.
Our _______ is changing due to human actions.
The wearing away and removal of material by a moving force, such as a breaking wave.
Energy resource whose supply will not run out.
Coal, gas and oil are _____________. You cannot easily get more of them when they run out.
People are concerned about the ecological ______________ of marine farming.
Moisture falling from the atmosphere as rain, hail, sleet or snow.
The British __________ was established at Sydney Cove.
The country's economic ______________ is fragile.
A _______ is a block of dense ice.