Which part of a tree always grows down because of gravity?

a. the roots
b. the trunk
c. the leaves
d. the branches

The branches but also the leaves do give most light which grows both ways so

1.from liquid state to gaseous state is evaporation 3.solid to liquid is melting 5. solid to gaseous state is sublimation 6. gas to solid state is decomposition 7. a change of state is known as the states of matters