Hawaii first drew the attention of the united states because
a)it had water that could be brought to los angeles
b)it could provide beef for prospectors in san francisco
c)it had deposits of gold and silver
d)it was seen as a refueling station for naval vessels

How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by

In a good thermo flask the main cause of heat loss is

Which component of the earth’s atmosphere is decreased due to photosynthesis?