Can metals contaminated with hazardous materials be easily recycled? Should they be placed in landfills?

Which is an example of a decomposer? a. bear b.algae c.grass d.bacteria d bacteria

Hairs that clean dirt out of the air in your nasal passages are called: a. sinus b. trachea c. cilia d. mucus

Ruby is conducting an investigation. an advantage of her design is that she can use a large range of variables, with that she can not be sure that one variable is the cause of another. what kind of investigation is ruby most likely conducting?