The Summative Assessments are aligned with the Common Core State Standards (CCSS) for English language arts/literacy (ELA) and mathematics. The tests capitalize on the strengths of computer adaptive testingâefficient and precise measurement across the full range of achievement and timely turnaround of results.
Kola wellâs derrick in 1980: still the worldâs deepest hole (Credit: Wikipedia) Decades ago, the Russians drilled deeper than anyone has ever gone. Their Kola Superdeep Borehole was started in 1970 and still holds the world record for the deepest hole in the ground. But they didnât reach the mantle.
[â]iorgfeflkdBiophysics 263 points264 points265 points 3 years ago (129 children) The deepest we have dug is the Kola Superdeep Borehole in Russia which went about 12 km deep. There have also been some oil wells that have gone similarly deep.The deepest known cave is the Voronya cave which is about 2 km deep. permalink.