If LaL turns into a gel when exposed to a sample, it means the sample is contaminated with gram-negative bacteria

Match the following. match the items in the left column to the items in the right column. 1. foreshocks process used to locate the epicenter of an earthquake 2. magnitude newer magnitude scale that measures the amount of moved (displaced) rock along a fault to determine the strength of an earthquake 3. mercalli intensity scale measure of the total amount of energy released during an earthquake 4. moment magnitude scale areas on active faults where a major earthquake hasn't occurred in a long time 5. richter scale mini-quakes that usually occur before a major earthquake 6. seismic gaps scale that measures the effects or severity of an earthquake 7. triangulation scale of magnitude based on the size of seismic waves produced by an earthquake

What is thought to have caused the mass extinction at the end of the cretaceous period?

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.