Need asap will mark sully works as a geologist in the southwestern united states. he plans to choose an unstable isotope to find the absolute age of a rock sample. which two aspects must he consider before making his choice? (more than 1) 1. there should be a sufficient amount of the selected isotope in the rock. 2. the isotope should be one that decays at a very fast rate. 3. the isotope must not be found in any neighboring rocks. 4. the half-life of the isotope must be long enough to capture the age of the rock. 5. there should be more than one unstable isotope in the rock.

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

The cluster of developing cells from conception until birth is called an

Which animal is a producer in this ecosystem