Don't know if this is for sure chemistry but they didn't have just plain science

when earth receives this energy, some energy escapes back into space, someis absorbed by the atmosphere, and some is absorbed by land and water

a. surfaces
b. enviornment
c. sinks
d. reflects

Nan element’s square on the periodic table, the number with the greatest numerical value represents the

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.

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.