Why do scientists use ocean sediments instead of those found on land to
track climate history?

When the dust shows up in ocean cores, scientists can analyze its chemistry to determine where it came from. By charting the distribution of the dust, scientists can see where the winds were blowing and how strong they were. Sediment made up of mineral grains from the continents can also tell about ocean currents.

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.