From this passage we can infer that the author's attitude toward the theory of some geologists (Line 3, Para. 1) is________.

A．Of or relating to climates.
B．Of or relating to the changes of climates.
C．Of or relating to the study of climates.
D．Of or relating to climates in a certain area.

A．might cause.the overflow of flood
B．might lead to the loss of organic nitrogen in it
C．will produce a great deal of organic nitrogen
D．is harmless to the growth of rain forests