All organisms need nitrogen to build proteins, which are used to build new
cells.

If a population is growing quickly in a small area then what must increase as well

What do the capital cities of lebanon, kuwait, qatar, united arab emirates, and oman have in common? they are all inland cities. they are all coastal cities. they are all have “stan” in their names.

According to the earth science reference tables, during which geologic time period were the continents of north america, south america, and africa closest together?