Changes

=== Geology ===

=== Geology ===

[[Image:Stratigraphy_of_the_Grand_Canyon.png|right|thumb|300px|The Unconformity is readily apparent in the [[Grand Canyon]] where foliage and ground cover do not obscure the rock face.]]

[[Image:Stratigraphy_of_the_Grand_Canyon.png|right|thumb|300px|The Nonconformity is readily apparent in the [[Grand Canyon]] where foliage and ground cover do not obscure the rock face.]]

# The continued existence of fragile natural arches without having collapsed a short time period for erosion and stresses on them<ref>http://www.naturalarches.org/big9.htm</ref>.

# The continued existence of fragile natural arches without having collapsed a short time period for erosion and stresses on them<ref>http://www.naturalarches.org/big9.htm</ref>.

# An extrapolation of time between the collapse of weaker arches<ref>http://www.washingtonpost.com/wp-dyn/content/article/2008/08/11/AR2008081102290.html</ref> with still-standing stronger arches supports a young earth age.

# An extrapolation of time between the collapse of weaker arches<ref>http://www.washingtonpost.com/wp-dyn/content/article/2008/08/11/AR2008081102290.html</ref> with still-standing stronger arches supports a young earth age.

# The ratio of strontium isotopes in seawater, which should change due to long-term erosion, has varied by only 0.35% throughout history. In fact, its value today is exactly the same as in the oldest samples, which are claimed to be from 500 million years ago!{{fact}}

# The ratio of strontium isotopes in seawater, which should change due to long-term erosion, has varied by only 0.35% throughout history. In fact, its value today is exactly the same as in the oldest samples, which are claimed to be from 500 million years ago!{{fact}}

# The interior of the earth is heated by decay of radioactive isotopes, which could not possibly still be persisting in sufficient quantities after 5 billion, or even half a billion, years.{{fact}}

# The interior of the earth is heated by decay of radioactive isotopes, which could not possibly still be persisting in sufficient quantities after 5 billion, or even half a billion, years.{{fact}}

=== Biology ===

=== Biology ===