The first bacteria probably used ________ instead of water as a source of hydrogen

A) Fe3O4.OH B) H2SO4 C) H2S D) OH-1 E) HCl


C

Environmental & Atmospheric Sciences

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Most native languages of Oceania belong to which language family?


A) Solomon
B) Austronesian
C) Papuan
D) Pidgin English (Pijin)
E) Indo-European

Environmental & Atmospheric Sciences

the most widespread oxides are those that combine oxygen and ______.

a - native elements b - silver c - calcite d - iron e - water

Environmental & Atmospheric Sciences

________ is helping natural hazards to become catastrophes

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

In the case of traditional geothermal power generating plants, individual geothermal fields can typically be used for only a few decades before the rocks become too chilled for efficient power generation.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences