9 wk exam review

Energy source used to replace fossil fuels.

• alternative
• renewable
• nonrenewable
• recyclable

Takes millions of years to form.

• hydroelectric
• renewable
• solar
• fossil fuels

Solid fossil fuel formed from ancient plants.

• coal
• oil
• petroleum
• natural gas

A resource that can be easily replaced.

• renewable
• alternative
• nonrenewable

Heat produced from magma within the earth.

• solar
• biofuel
• hydroelectric
• geothermal

Which of the following is a condition that will preserved remains?

• amber
• frozen in permafrost
• tar
• all of these are correct

What is hardened tree sap called?

• coprolites
• index fossils
• gastroliths
• amber

Fossils that haven't changed over time, all tissues are still intact.  

• index fossils
• trace fossils 
• petrified fossils
• preserved remains

Fossils that are modified bone, wood or shell. 

• preserved remains
• petrified fossils
• index fossils
• trace fossils

The hollowed out impression in a rock that is the same shape as a shell. 

• cast
• mold
• trace fossil 
• index fossil