Given the name of an element and the number of neutrons, find the mass of an Isotope

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

How are isotopes of the same chemical element alike? how are they different?

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.