Oceans

The ocean covers

• 91% of Earth's surface

• 71% of Earth's surface

• 79% of the Earth

• 51% of the Earth's crust

The current found moving North along the U.S. and then east across the Atlantic is called...

• the Mariana's Current

• the Jet Stream

• the Nemo Trail

• the Gulf Stream

What are the three main groups of marine life?

• Plankton, Nekton, and Benthos

• Nekton, Plankton, and Aquamarine

• Sharks, fish, and seaweed

• All of the above

The beginning of nearly all marine food chains...

• Seaweed

• Photogenesis

• Phytoplankton

• Fish

What causes tides?

• The gravitational pull of the moon and sun

• The gravitational pull of all the planets

• Mostly the wind and tsunamis

• Large magnets in the sky

Which of these are Benthos (bottom of the ocean)?

• Sea weed, anemone, sharks

• phytoplankton

• Kelp, snails, and sea stars

• None of the above

What is a coral atoll?

• a troll under a bridge collection a toll

• a coral reef deep under the ocean

• the myth that a volcano makes an island in the ocean

• the circular island and coral reef that remains after a volcanic island has been eroded and weathered down

Which of these are Nekton (swimmers)?

• turtles, tigers, and humans

• Fish, Whales, and jellyfish

• large fish only

• Fish, mermaids, blue whales

What are the worlds' three largest oceans?

• Atlantic, Indian, and Pacific

• Atlantic, Arctic, and Pacific

• Pacific, Atlantic, and Indian

• Pacific, Southern, and Indian

How do you measure wavelength in the ocean?

• From crest to crest

• From trough to crest

• From the bottom of the ocean to the surface of the ocean

• From left to right