CLIMATE CHANGE

Man made carbon dioxide comes from the burning of fossil fuels. An example of a fossil fuel is

• wood

• oil

• shale

Ocean acidification begins with

• pollution from ships

• carbon dioxide released from combustion

• dumping of waste from cities into the ocean

The H+ ion is a(n)

• acid

• base

• neutral

Marine organisms make their shells from calcium and

• chloride

• carbonate

• sea water

An example of a marine organism that needs calcium carbonate

• sharb

• octopus

• crab

The process of burning fuel to drive a car or operate a factory is called

• combustion

• respiration

• photosynthesis

Very slight increases in the acidity of seawater __________ marine organisms that make shells.

• doesn't bother

• is unhealthy and stresses

• has no effect on

Carbon dioxide levels in the air have changed throughout earth's history. The difference today is how ______ the change is happening.

• rapidly

• slowly

• wide spread

Too many greenhouse gasses in the atmosphere may block heat from escaping into space and trap too much heat next to the Earth’s surface causing

• ice age

• volcanoes

• earthquakes

• global warmings

Which is a green-house gas?

• Hydrogen

• Oxygen

• Methane