Section 200.22 Program standards for behavioral interventions. Behavioral interventions for students with disabilities shall be provided in accordance with this section and those other applicable provisions of this Part and/or Part 201 that are not inconsistent with this section. (a) Assessment of student behaviors.
The age of Earth was calculated to be about 24-40 million years based on the laws of thermodynamics. Unknown at the time was that the Earth has an internal heat source (radioactive decay) In 1899, John Joly (Irish) calculated the rate of delivery of salt to the ocean.
There was no single estimate of the Earth's age in the mid 1800's and no good way to arrive at one. There were various attempts to estimate the Earth's age, working back from sedimentation rates and other geophysical phenomena. The attempts produced estimates from about 100 million years up to several billion years.