Global Perspectives

The entry of harmful substances in to the environment is called:

• Precipitation

• Condensation

• Pollution

• Evaporation

___________________ is the third largest ocean in the world.

Chichen Itza was built by the ____ civilisation.

• Inca

• Nabeteans

• Arab

• Mayan

Noise under water is made by:

• ship propellers

• seismic blasts

• deep sea mining

• All of the above

Eutrophication is the process of:

• Toxic chemicals from insecticides flowing into oceans.

• toxic chemicals from factories

• chemicals from sewage

• oil spillage

The great wall of china is ___________ miles long.

Littering causes pollution due to plastic debris.

• True

• False

The colosseum can accommodate _______ spectators at a time and has ______ exits.

• 20,000; 40

• 50,000; 30

• 60,0000, 20

• 50,000, 80

The ships used for cleaning oil spillage after an oil spill are called:

• shippers

• cleaners

• skimmers

• propellers

Australia is also called ______________