YDS CÜMLE ATMA / TEST 7 17. Soru

17.

- (I) Differences in climate and ecology explain
the different kinds of organisms found in the
past and today. (II) The existence of giant
insects and birds suggests that something was
very different in the past. (III) Attempts' to link
culture with climate and ecology have an old
history. (IV) Perhaps the air pressure was
higher and some past catastrophe caused
much of the earth's atmosphere to be lost to
space. (V) Perhaps the composition of the
atmosphere was somewhat different