Question

Part 1 . Choose the letter A, B, C or D to complete the passage below( 1pt)

 Water pollution happens _______ (1) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not _______ (2) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking.Water pollution can be______ (3) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources ______ (4) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain.

1.A. what         B. when        C. why        D. while

2.A.both        B.only         C.well        D.either 

3.A.cause            B.caused         C.cuasing         D.causes

4.A.of             B.in           C.at            D.for 

Answer 1

Part 1 . Choose the letter A, B, C or D to complete the passage below( 1pt)

 Water pollution happens _______ (1) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not _______ (2) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking.Water pollution can be______ (3) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources ______ (4) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain.

1.A. what         B. when        C. why        D. while

2.A.both        B.only         C.well        D.either 

3.A.cause            B.caused         C.cuasing         D.causes

4.A.of             B.in           C.at            D.for 

Answer 2

B

B

B

A?

Answer 3

1 B

2 B

3 B

4 A

Answer 4

1: B

2: B

3:B

4: A

Answer 5

1.B

2.B

3.B

4.A

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