True or false? all four types of macromolecules always contain carbon (c), hydrogen (h), and oxygen (o), but not all of them contain nitrogen (n).

Determine the mass of fuel required for the expected energy consumption in the united states for the next ten years. energy use per person per year in the united states = 3.5 x 1011joules base calculations on current population of 310,000,000.

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what

All of the following are part of the biosphere except