MCQ on Environmental Pollution

1-A used material will be discarded if reclamation costs _ the cost of new (virgin) material
(A) is more than
(B) is equal to
(C) is lower than
(D) all of the above
[expand title=”View Answer”](A) is more than[/expand]
 
2-_ is the substance reused in the greatest volume.
(A) plastic
(B) glass
(C) water
(D) textiles
[expand title=”View Answer”](C) water[/expand]
 
3-Raw materials for plastics are _ based.
(A) wax
(B) petroleum
(C) wood
(D) all of the above
[expand title=”View Answer”](B) petroleum[/expand]
 
4-Industrial wastes _ municipal solid wastes.
(A) are more easily separated than are
(B) are more difficult to separate than are
(C) is equally difficult to separate as that of
(D) it depends upon the type of industry
[expand title=”View Answer”](A) are more easily separated than are[/expand]
 
5-Glass requires separation as to _.
(A) thickness
(B) color
(C) both (A) and (B)
(D) none of the above
[expand title=”View Answer”](B) color[/expand]
 
6-The following plastic bottles are commonly collected for recycling.
(A) PET
(B) HDPE
(C) both (A) and (B)
(D) PS
[expand title=”View Answer”](C) both (A) and (B)[/expand]
 
7-LDPE stands for
(A) Low-density polyethylene
(B) Low-density polyethylene
(C) Low-density polyethylene
(D) None of the above
[expand title=”View Answer”](A) Low density polyethylene[/expand]
 
8- A major problem in plastic recycling is the ___.
(A) color
(B) low weight-to-volume ratio
(C) low melting point
(D) all of the above
[expand title=”View Answer”](B) low weight-to-volume ratio[/expand]
 
9- The majority of the paper recycling market is _.
(A) newsprint
(B) corrugated paper
(C) both (A) and (B)
(D) none of the above
[expand title=”View Answer”](C) both (A) and (B)[/expand]
 
10-PET stands for
(A) Polyethylene Terephthalate
(B) Polyethylene Tetraphthalate
(C) Polyethene Tetraphthalate
(D) None of the above
[expand title=”View Answer”](A) Polyethylene Terephthalate[/expand]
 
11-Following is the technique used to remove ink from paper during the recycling of paper.
(A) Suffocation
(B) Flotation
(C) Sublimation
(D) All of the above
[expand title=”View Answer”](B) Flotation[/expand]
 
12-Which of the following paper has more calcium carbonate?
(A) newsprint
(B) tissue paper
(C) magazine paper
(D) none of the above
[expand title=”View Answer”](C) magazine paper[/expand]