Silabus olgenas a,b,c

Front

Best conclusion from the graph?

Back

Atmospheric CO2 levels have increased steadily since 1960.

Front

Carbon dioxide is effective in trapping heat near Earth's surface.

Back

True

Front

Gases in Earth's atmosphere: most abundant?

Back

nitrogen and oxygen

Front

Main use of fossil fuels: produce ___________

Back

electricity

Front

Coral bleaching

Back

Corals lose algae and color under stress (high temperature, light).

Front

Testing Mohs levels of rock using a penny, steel nail, fingernail, and glass plate.

Back

mineral hardness

Front

Biggest unit of time on the Geologic Time Scale

Back

an eon

Front

Impact of an asteroid during the Cretaceous period affected ecosystems by blackening skies.

Back

The dust from the impact would block sunlight, hindering photosynthesis.

Front

Elevation of the mountain?

Back

871 meters

Front

Theory of continental drift

Back

Continents move slowly over Earth's surface.