Scientists must use microscopes to study the cells of living things. Microscopes have become much more powerful since scientists used them to develop the cell theory. Explain why microscopes are needed to study cells. Also describe some discoveries that microscopes have helped scientists make about cells. Include how advances in microscopes have helped scientists make these discoveries

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.