the balance of gases in the air is critical to the survival of all life on earth. Describe what would happen to plants and animals if the oxygen level dropped a couple of percentage points (to 18%)

6 units. ab and lo are congruent sides, and if ab= 6 units, then lo would be the same.

immigrants from northern and western europe continued coming as they had for three centuries, but in decreasing numbers

on february 25, 2004, at the time the president of united states of america george bush announced that he supports the constitutional amendment to ban the same-sex marriage. but the possibility was left that states can decide whether they allow civil unions.