Im pretty sure its the NCR ( Nuclear Regulatory Commission ) <span />
Explanation:
A warm front is indicated on the line by red semi-circles pointing away from the warmer air and pointing in the direction towards which the warm air is moving. Along sections of the polar front, cold and warm air masses may move differentially with for one another.
Until the early Proterozic there were only negligible amounts of free oxygen in the atmosphere
The answer is handwriting
hope so this helped
