An estuary is a body of water where:
A river begins
Salt water and fresh water meet
The water runs very rapidly
Some irrigation is used
Caves are most likely to form in which of the following rock types?
Granite
Limestone
Basalt
Sandstone
Which type of weathering is granite more prone to?
Carbonation –solution
Hydrolysis
Oxidation
Hydration
How is the Mid-Atlantic ridge formed?
By subduction
By underwater volcano eruption
By sea-floor spreading
By tension between two plates that slides past each other
What causes coral bleaching?
Global warming
Acid rain
Tsunami
Volcano
The largest barrier reef system in the world.
Beqa Barrier reef
Great Barrier Reef
Lesser Antilles in the Caribbean
Barrier reef of Florida
In which part of the river does a floodplain begin to form?
Upper course
Middle course
Lower course
Both in the upper and middle course
In which of the following locations are saltmarshes typically found?
Low-energy coastal lines
Behind spits and barrier islands
In estuaries and harbours
All of the above
