What does it mean when they say that rock erodes? a. it gits thicker and more compact
b. it pushes up through the ground
c. it breakes down and dissolves
d. it forms a new kind of rock

The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an