Earth and Space Test 5

The ocean current caused by changes in sea water density and temperature is called what?

• Gulf Stream

• El Nino

• thermohaline

• upwelling

What is the rising of cold water from the ocean’s depths to the surface called?

• Gulf Stream

• El Nino

• thermmohaline

• upwelling

The ocean zone nearest the shore is called what?

• nertic

• intertidal

• pelagic

• benthic

The ocean zone that includes the bottom floor of the ocean at all depths is called what?

• nertic

• intertidal

• pelagic

• benthic

What era of Earth’s history did animal and plant life diversify greatly?

• Cenozoic

• Mesozoic

• Paleozoic

• Pre-Cambrian

What era of Earth’s history did the dinosaurs live in?

• Cenozoic

• Mesozoic

• Paleozoic

• Pre-Cambrian

What was the greatest mass extinction event in Earth’s history?

• The KT event

• . The Cenozoic event

• The Permian extinction

• Who knows!

The floating organisms that are moved by currents and waves are called what?

• nekton

• plankton

• benthos

• molluscs

What is the component gas of the atmosphere that is made by photosynthetic organisms?

• oxygen

• ozone

• carbon dioxide

• nitrogen

What is the main force that drives the Earth’s weather?

• the Earth’s rotation

• currents

• the Sun’s heat on the ocean

• clouds