Earth & Environmental Sciences
Precambrian
87%
salinity
65%
ocean
54%
history
52%
Archean
37%
craton
37%
temperature
35%
metazoan
32%
brine
23%
hydrothermal vent
15%
halite
15%
Phanerozoic
14%
chert
14%
evaporite
14%
glaciation
13%
occupation
12%
oxygen isotope
12%
explosion
12%
cyanobacterium
12%
chlorine
12%
respiration
11%
solubility
11%
calcite
11%
surface temperature
10%
silica
10%
seawater
9%
cooling
9%
salt
9%
organism
9%
habitat
8%
world
7%
sea
7%
basin
6%
water
4%
Agriculture & Biology
oceans
100%
salinity
75%
temperature
37%
microorganisms
26%
oxygen isotopes
20%
calcite
18%
glaciation
16%
thermophilic microorganisms
16%
anaerobes
15%
explosions
15%
surface temperature
15%
chlorine
13%
silica
13%
basins
12%
solubility
12%
seawater
12%
Cyanobacteria
11%
cooling
11%
ribosomal RNA
9%
salts
9%
environmental factors
8%
habitats
7%
organisms
7%
water
5%