You collect a sediment core on an expedition to the Aegean Sea. In this area, the background sedimentation rate is known to be between 0.01 cm per year. You also know that about 3600 years ago, the Santorini volcanic eruption dumped 1 meter of ash on the seafloor. The top of this ash layer is noticeable in the core about 36 cm down from top (seafloor surface). When processing the core, you see a funny signal in the 18O/16O ratio around 2 meters down the core.
Use the information above to estimate about how long ago the process that caused the funny signal occurred?

*will mark brainliest for first correct answer* which of the following is most likely to affect the biodiversity of a park ecosystem? a. less rain than usual for several months b. ongoing pollution from a nearby factory c. park rangers plant a new type of tree d. disease wipes out an entire population

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

Osmosis is often viewed incorrectly as a process driven directly by differences in solute concentration across a selectively permeable membrane. what really drives osmosis? view available hint(s)osmosis is often viewed incorrectly as a process driven directly by differences in solute concentration across a selectively permeable membrane. what really drives osmosis? the first law of thermodynamicsthe difference in the height of water columns on either side of a selectively permeable membranethe difference in water concentration across a selectively permeable membranethe difference in sugar or ion concentration across a selectively permeable membrane