What is the most important resource on Earth?

Why can't humans survive more than days without water but can last for weeks without food?

What is the percentage of how much water is in oceans, seas, bays and water lakes?

What is the percentage of fresh water that is either trapped underground or in icebergs?

What is the proportion of water that is alright to drink?

How is water a renewable resource?

What is the definition of water cycle?

What is evaporation and how does it work?

What is condensation and how does it work?

What is precipitation and how does it work?

What is the run-off and percolation.

What is the transpiration phase and how does it work?

What is ground water and what does it do?

What is pervious rock and what does it allow to do?

What is the Great Artesian Basin?

How did The Great Artesian Basin form?

What is impervious rock?

What is the Structure of the Great Artesian Basin and can it deliver water?

What are the factors affecting the
water cycle

What is the state of water is incompatible with the water cycle?

How is air temperature affecting the water cycle?

How is humidity affecting the water cycle?

How is air movement affecting the water cycle?

How is the landscape affecting the water cycle?

How is the vegetation affecting the water cycle?

How does the amount of sunshine affecting the water cycle?