Used today by much of the world, the Gregorian calendar is based on A. the ancient Hebrew calendar.
B. the Islamic calendar.
C. the cycles of the moon.
D. the movement of Earth around the sun.

How can minerals crystallize from materials dissolved in water? check all that apply.

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

After railroads, the next revolution of transportation came with the development of (a) automobile (b) telegraph (c) steam engine