Name TWO RENEWABLE ENERGY sources.
Solar, wind, hydropower, biomass, geothermal, etc.
What does it mean to become PETRIFIED?
What is a CAST?
It's a fossil mold filled with sediment.
What kind of fossil is this?
It's an IMPRINT.
What does ENDANGERED mean?
It means a species is IN DANGER (at risk) of going EXTINCT (dying out.)
What is a MOLD?
It's a hollow fossil.
What are these called?
ROCK LAYERS.
What's a MARINE ORGANISM?
A living thing in an ocean environment.
What does EXTINCT mean?
It means all the members of a SPECIES have DIED OUT.
What are FOSSILS?
Preserved remains of dead organisms.