Answer:
a baby body has about 300 bones at birth
D. i belive hope this helps u buddy if not then im sorry....
-Lawrence $.
Effect: Radiogenic heat released- Cause: convection currents cycle through magma.
2.) Effect: Earth has a powerful magnetic field- Cause: Iron in earths outer core swirls due to convection currents.
3.) Effect: tectonic plates move- Cause: unstable isotopes in earth release energy.
: ) I think this is right
