Which can be excluded due to the absence of fossil records A. the body of a jellyfish
B. the shell of a crab
C. a dinosaur's backbone
D. the shell of a snail

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Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

Determine the reaction and balance the following equations urgent due in the morning