Read the following passage and choose the best answer for each blank.
Paper can be recycled by reducing it to pulp and (1) ________ it with pulp from newly harvested wood. As the recycling process (2) _______ the paper fibers to breakdown, each time paper is recycled its quality decreases. This means that (3) ______ a higher percentage of new fibers must be added, or the paper down cycled (4) _______lower quality products. Any writing or coloration of the paper must first be removed by deinking, which (5)________ removes fillers, clays, and fiber fragments.
Almost (6) ______ paper can be recycled today, but some types are harder to recycle (7) _____ others. Papers coated with plastic or aluminum foil, and papers (8) ______ are waxed, pasted, or gummed are usually not recycled (9)_____ the process is too expensive. Gift wrap paper also cannot be recycled (10) _____ to its low quality.