Question

pneumatic bones r present in and why

Answer 1

pneumatic bones. Pneumatic Bones have air spaces within them which makes them lighter than more solidbone. They are only found in the skull. An example of apneumatic bone is the Sphenoid bone.
pneumatic bones. Pneumatic Bones have air spaces within them which makes them lighter than more solidbone. They are only found in the skull. An example of apneumatic bone is the Sphenoid bone.

Answer 2

pneumatic is present in birds and are those kinds of bones have air spaces in them.these bones decrease the weight of birds