Choose the answer that is not a fossil. a. dinosaur footprints preserved in mud turned to rock

b. a 400 million year old fish preserved in rock

c. a cow skeleton in the desert

d. a petrified t-rex is found in Montana

This is a form of winter precipitation. it is frozen precipitation falling as ice pellets. snowflakes melt into raindrops as they pass through a thin layer of warmer air. the raindrops then refreeze into particles of ice when they fall into a layer of sub-freezing air near the surface of the earth. this precipitation is called a) hail. b) rain. c) sleet. d) snow.