The fossil pictured above came from the st. clair site in pennsylvania. the fossils are formed in black slate of the pennsylvanian period, 300 million years ago. the fossils found at this site are comprised of ferns and trees. this fossil record for this time period in pennsylvania indicates that the environment was a
a) desert
b) deep ocean
c) shallow sea
d) thriving forest

In november 1987, a massive iceberg broke loose from the antartic ice mass and floated free in the ocean. the chunk of ice was estimated to be 98 mi long, 25 mi wide, and 750 ft thick. a typical backyard swimming pool contains about 24,000 gallons of water. how many of these pools could you fill from the water in this iceberg? (assume the iceberg is a rectangular solid of the above dimensions and consists of water only). express answer in scientific notation.