UPSC NCERT ENVIRONMENT NOTES: TOPIC WISE SOLVED MCQ’s

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1.Consider the following statements:

1. Microbial leaching refers to the process of using microorganisms to degrade waste matter.

2. Hemophilia is caused when certain genes fail to produce blood-clotting substances.

Which of the statements given above is/are correct?

a) 2 Only        b)  1 Only        c) Neither 1 nor 2             d)   Both 1 and 2

Ans:     A

 

2. Consider the following statements:

1. Bioremediation is the process by which metals are dissolved by microorganisms from ore-bearing rocks.

2. Vermicomposting is the phenomenon of compost formation by earthworms.

Which of the statements given above is/are correct?

a)    2 Only     b)  1 Only        c) Neither 1 nor 2        d)  Both 1 and 2

Ans:      A

 

3. What are the components of slurry-phase treatment?

1. Water          2. Suspended particulate matter                     3. Air

a)  2 and 3 Only                    b)  1 and 2 Only                      c) 1, 2 and 3          d) 1 and 3 Only

Ans:     C

 

4.Which of the following methods can be employed for bio remediation of oil spills?

1. Using mixture of bacteria.

2. Using genetically engineered microbial stains.

a)   2 Only                 b) 1 Only                     c) Neither 1 nor 2        d)  Both 1 and 2

Ans:     D

 

5. Match the following:

     Vitamin                             Chemical Name

  1. Vitamin-A                    1. Pantothenic acid
  2. Vitamin-B1                  2. Retinal
  3. Vitamin-B2                  3. Riboflavin
  4. Vitamin-B3                  4. Thymine

     Code:

      A         B         C        D

a)   2          4          1        3

b)   2          4          3        1

c)   4          2          3        1

d)   4          2          1        3

Ans:       B

 

6. Match the following:

        Vitamin                              Chemical Name

  1. Vitamin-C                      1. Phylloguinone
  2. Vitamin-D                      2. Tocopherol
  3. Vitamin-E                      3. Calcijerol
  4. Vitamin-H                      4. Ascorbic acid

Code:     A         B        C        D

     a)      4          3         2        1

     b)      3          4         1        2

     c)      1          2         3        4

    d)      2          1         4        3

Ans:       A

 

7. Match the following:

             Drug                                      Use

  1. Atropine                       1. Anti-cancer agent
  2. Codeine                        2. Anticholinergic
  3. Colchicines                   3. Analgesics
  4. Glaziovine                    4. Antidepressant

Code: A          B         C          D

a)      3           1         4           2

b)      1           2         3           4

c)      2           3         4           1

d)      2           3         1           4

Ans:      D

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