It has been theorized that all of the modern continents on Earth were once part of a single continent. What scientific evidence is used to support this theory? 1) Fossils of similar lifeforms have been found on different continents.

2) The coastlines of some modern continents appear to have once fit together.

3) Some of the continents that exist today have similar types of rocks.

Which on is it?

what is your question? collegechemistry 5+3 pts 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.