Most non-ionizing radiation such as microwave, radio waves,

Question

Most non-ionizing radiation such as microwave, radio waves, and infrared light have little effect on biological systems; i onizing radiation, however, is extremely dangerous because even a low frequency--about 30 petahertz--can cause damage to cells.

A)ionizing radiation, however, is extremely dangerous because even a low frequency--about 30 petahertz--can cause damage to cells
B)however, even a low frequency of ionizing radiation--about 30 petahertz--can cause damage to cells making it extremely dangerous
C)ionizing radiation, however, is extremely dangerous because even a low frequency--about 30 petahertz--will cause cells to be damaged by it
D)however, because even a low frequency of ionizing radiation is about 30 petahertz, it can cause damage to cells and is thus extremely dangerous
E)however, ionizing radiation has a low frequency of about 30 petahertz that can cause damage to cells, thus making it extremely dangerous

daagh · Answer

A) ionizing radiation, however, is extremely dangerous because even a low frequency--about 30 petahertz--can cause damage to cells -  correct answer.

B) however, even a low frequency of ionizing radiation--about 30 petahertz--can cause damage to cells making it extremely dangerous

1.  it  stands for  a low frequency of ionizing radiation  – wrong reference. It is the  ionizing radiation  which is dangerous and  not its low frequency

2. Change of word order -  can cause damage to cells making it extremely dangerous  – gives rise to an altered meaning that damage to cells makes it extremely dangerous rather than the radiation.

C) ionizing radiation, however, is extremely dangerous because even a low frequency--about 30 petahertz--will cause cells to be damaged by it

will cause cells to be damaged by it;  awkward and  it  refers to low frequency rather than ionizing radiation

D) however, because even a low frequency of ionizing radiation is about 30 petahertz, it can cause damage to cells and is thus extremely dangerous

Altered intent; wrong pronoun reference of  it.

E) however, ionizing radiation has a low frequency of about 30 petahertz that can cause damage to cells, thus making it extremely dangerous

Altered focus of the passage from  making it extremely dangerous  to  ionized radiation having low frequency

amma4u · Answer

A)ionizing radiation, however, is extremely dangerous because even a low frequency--about 30 petahertz--can cause damage to cells
B)however, even a low frequency of ionizing radiation--about 30 petahertz--can cause damage to cells making  it  extremely dangerous -  "it" can refer to cells also. 
C)ionizing radiation, however, is extremely dangerous because even a low frequency--about 30 petahertz-- will cause cells to be damaged by it 
D)however, because even a low frequency of ionizing radiation is about 30 petahertz, it can cause damage to cells  and is thus extremely dangerous 
E)however, ionizing radiation has a low frequency of about 30 petahertz that can cause damage to cells,  thus making it extremely dangerous

A is the best as the modifier, modifies "ionizing radiation" correctly...
the other choices with the "it" at the end makes difficulty indentifying which one is referred.

devashish · Answer

Straight A.

When a Semicolon is used, the statements on its left and right should be complete sentences rather than Subordinate clauses.

Usage of However in the beginning of the statements makes options B,D and E as Subordinate Clauses.

Option C is in Passive Voice and wordy hence not preferable.

shekharvineet · Answer

Straight A.
I was thinking about B but then I realized that there is an ambiguity of pronoun reference

hirendhanak · Answer

Simple A... but yes B is a good trap

Wofford · Answer

only choices available are A and C. The end of C is just wrong so A

Most non-ionizing radiation such as microwave, radio waves,

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