Countries were separated by continental drift
Carbon dioxide is added to the atmosphere by human activities. When hydrocarbon fuels (wood, coal, natural gas, gasoline, and oil) are burned, carbon dioxide is released.
Answer:
following statements correctly describe the structure of a developing mid-latitude cyclone and anticyclone
Explanation:
A upward air motion above the surface high.
C system is vertically stacked (upper lows/troughs directly above surface low).
D divergence aloft above the surface high.
F upward air motion above the surface low.
Jack Hills, Australia, where rocks were found to contain the oldest known minerals on Earth, a 4.4 billion-year-old zircon. Just three of the very oldest zircons have been found, ones that date back to almost 4.4 billion years ago. Their extreme age <span>always makes the dates suspect, because of possible radiation damage. </span>
