( ) is not a kind of major bulk. A: iron ore B: phosphates C: bauxite D: cement

The United States and Canada have agreed ______ in regard to the Great Lakes. A: to eliminate swimming entirely B: to limit boating and C: to limit phosphates and detergents D: to kill all algae

The information encoded in DNA resides in() A: phosphates in<br/>the backbone B: sugars in the<br/>backbone C: the DNA base<br/>sequence D: the sugars and<br/>phosphate groups together

The United States and Canada have agreed ________in regard to the Great Lakes. A: to eliminate swimming entirely B: to limit boating and fishing C: to limit phosphates and detergents D: to kill all algae