Why can volcanic rocks occasionally contain fossils?
A) Lava does not melt bones.
B) Volcanic ash, if builds quickly enough, can preserve the remains of organisms.
C) Magma cools so quickly that fossils get trapped inside.
D) Organisms were often attracted to volcanoes and fell inside them by accident.
Question 2
Which statement about compaction is false?
A) Grains of sand are crushed into a smaller volume.
B) Spaces between grains are decreased.
C) Flakes of minerals are broken.
D) Compaction may be caused by the weight of overlying sediment.
Bones of the axial skeleton.
Bones of the skull.
Discovering Fossils 29-30
Fossils are formed after an animal dies, decomposes, and is covered in sediment. Minerals in ground
Although average brain size increases gradually though time in H. erectus, individuals with small br
Bones of the human skeleton