4
Question
Hollow bones are characteristic features of
Hollow bones are characteristic features of
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Solution
The correct option is D Birds
Birds fly in the air and walk on the
ground. Some birds like ducks and
swans also swim in water. The birds can
fly because their bodies are well suited
for flying. Their bones are hollow and
light.
Hence the correct option is D.
Birds fly in the air and walk on the
ground. Some birds like ducks and
swans also swim in water. The birds can
fly because their bodies are well suited
for flying. Their bones are hollow and
light.
Hence the correct option is D.
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