What is the density of a block of wood with a volume of 16.5 ml and mass of 6.39g?

Match each object to its description: a. coma of a comet b. comet tail c. oort cloud haze surrounding a nucleus created by solar wind. hypothetical sphere around the solar system

1) this is the structure in the cell nucleus that houses a cell's genetic information

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space