With all the water on Earth, how long could we run a single faucet? a. 136 trillion
b. 150 quadrillion
c. 200 million
d. 102 billion

Which of the filling is an effect of the uneven heating of the earth by the sun ? a sea breeze a land breeze a convection current all of the above

Distance that lewis and clark traveled from st. louis to ft. clatsop near the pacific ocean.

Which of the following can scientists estimate geologic time? a.observing rock sequences b.radiometric dating c.comparing fossils d.all of these