11 a sample of co2(s) and a sample of co2(g) differ in their
(1) chemical compositions
(2) empirical formulas
(3) molecular structures
(4) physical properties

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Ariver current has a velocity of 5km/h relative to the shore, and a boat moves in the same direction as the current at 5 km/h relative to the river. how can the velocity of the boat relative to the shore be calculated?

2. what two items do autotrophs take from the environment to produce their food? 3. what are the two items that are released during transpiration from leaves? 4. what are the two membranes of the system? a.what are the two stages of photosynthesis? what are the two parts of photosynthesis?