The "newest" named ocean is the Ocean.
Southern
Northern
2.
Ocean water contains about ___% salt.
3
5
7
3.
Mountains and volcanoes that are underwater are called .
seamounts
trenches
4.
When you are at the beach, you are playing in the sand of the .
sea floor
continental shelf

Listenbase your answer to the question on the information below.nuclear radiation is harmful to living cells, particularly to fast-growing cells, such as cancer cells and blood cells. an external beam of the radiation emitted from a radioisotope can be directed on a small area of a person to destroy cancer cells within the body.cobalt-60 is an artificially produced radioisotope that emits gamma rays and beta particles. one hospital keeps a 100.0-gram sample of cobalt-60 in an appropriate, secure storage container for future cancer treatment.which choice represents the correct product for the beta decay of the co-60? fe-60ni-60fe-61ni-61