Earth's Oceans

How long have people been harvesting plants and animals from the Ocean?

• millions of years

• thousands of years

• we don't harvest from the ocean

• a few years

What is desalination?

• removing salt from sea water

• adding salt to water

• adding minerals to water

• exploring the ocean

Energy generated from the movement of the ocean tides is called_____

• wind energy

• solar energy

• tidal energy

• electricity

Oil and gas were created from____

• bought to earth by aliens

• from the ocean

• the remains of plants and animals buried over millions of year.

• humans

Nodules are_______

• cells in your mouth

• animals that live in the ocean

• potatos

• potato-shaped lumps of mineral

Oil and Gas are used to ____________

• clean water

• pave the roads

• make plastic objects and other products

• feed people

The Earth is covered in _____________ liquid water.

• 50%

• 100%

• 10%

• 71%

Which of the following is not a main Ocean on Earth?

• San Andreas

• Pacific

• Atlantic

• Southern

• Arctic

Where did some of the gases that formed Earth's atmosphere come from?

• aliens

• animals

• people

• volcanoes

Which element makes up most of the Ocean's dissolved solids?

• potassium

• chlorine

• calcium

• sulfur