Question

Bones of birds are:

• A. Solid and heavy
• B. Solid and light
• C. Spongy and light
• D. Spongy and heavy

Answer 1

The correct option is C Spongy and light

The bones of birds are lighter in weight than those of mammals helping the birds to fly. They are also spongy and some of the bones are hollow and actually act as part of the avian respiratory system.

So, the correct answer is 'Spongy and light'.