The main National Academy of Science conclusion on global warming since the mid-1800s states
A) insufficient data exists to definitively state global warming has occurred.
B) temperatures have remain unchanged.
C) temperatures have risen around 0.5°C.
D) temperatures have risen 6°C.
C) temperatures have risen around 0.5°C.
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Historic sectors of Northern Africn cities, valued for their social fabric, are called _____________.
Fill in the blank(s) with the appropriate word(s).
The polar front jet stream blows ____
A) directly from west to east B) directly from east to west C) from the equator towards the poles D) in a wavy pattern from west to east
Hurricanes are much larger than middle-latitude cyclonic storms
Indicate whether the statement is true or false
Choose the Moon position that would cause a neap tide (lower than normal high tides and higher than normal low tides) in North America (North America is on the sunlit side of the globe).
A. Position 1 B. Position 2 C. Position 3