Ow does the amount of carbon dioxide in the air in alaska today compare to the amount 200 years ago? it is about 30 percent more. it is about 30 percent less. it is about equal. it has nearly doubled.

Read the article titled "castro resigns." why did the us impose trade sanctions against cuba in 1962?

15 points need quick 1. looking at your graph and the geologic time scale during what period did this rock form? what is the age span of the rock, in millions of years? 2. this rock sample is limestone and shale. with what you know about rock formation, what type of environment did these organisms live in? 3. if some of these fossil samples were found in a rock also containing leaf fossils, could you use radiocarbon dating to determine the age of this rock? explain.

Approximately how close is russia to alaska ? a.5 miles b.50 miles c.500 miles d.5000 miles