The difference between the afternoon high and the evening low is greatest in （）

A．Kansas City will be warmer than Toronto
B．temperatures will be the lowest in Seattle and Minneapolis
C．the weather will be fine in most of the listed cities
D．more than half of the listed cities ore cloudy or rain likely

A．The meteorite containing organic compounds is part of Mars.
B．A Martian rock struck Earth about 11,000 years ago.
C．The organisms came back to life after the collision with Earth.
D．The inhabiting organisms appeared more than three billion years ago.