Deep ocean currents are driven by differences in
temperature, pressure, and ph
density, salinity, and temperature
the alignment of the sun, moon and earth
evaporation, condensation, and precipitation

Altocumulus, altostratus, cirrocumuls, cirrostratus, cirrus, cumulonimbus, cumulus, nimbostratus, stratocumulus, stratus 8.) clouds with tallest vertical development 9.) low altitude clouds in solid layers that produce rain 10.) high altitude thin flat layers of clouds 11.) rain clouds that form under stable atmospheric conditions 12.) middle altitude clouds with globular appearance