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.
An example of layers, or strata, of sedimentary rock that contain fossils
Horses need to lie down occasionally, and prefer soft ground for a nap.
Greenstick Only one side of the shaft is broken, and the other is bent (like a greenstick); usually
Bones of the chest and shoulder
Use your thumbs to apply circular friction over the wrist bones, with recipient’s palm down.
In plant fossils, stomatal density is used to estimate CO2 concentration in the atmosphere