30 !

1. remember, the density of water is 1g/cm^3, so the mass of water equals the volume of the rose quartz. find the
density of the rose quartz.

2. find the specific gravity of the rose quartz. specific gravity = density of sample/density of water

3. what are the units for specific gravity?

20 the compound al(nh3)2 has atoms of nitrogen.

The function of the excretory system is to control homeostasis and

Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.