Recycled plastics cannot be used to produce new food containers because a. they are too hard to mold b. they cannot be placed in a freezer c. they cannot be sterilized d. their molecules are too complex

C

Explanation:

Research shows that plastic can absorb chemicals during waste management - after its disposal and before collection. The chemical may be hard to eliminate completely during recycling hence may be a source for contamination of food in food packaging after recycling. The risk for food contamination is definitely higher in second-hand plastic than in pristine plastic.

protocol for imps extraction focusing on membrane protein extraction, solubilisation, and purification.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.