Which statement explains how determining the age of the remains of living things is similar to dating rocks?
organisms and rocks both contain stable and unstable elements.
organisms contain the same unstable elements as those found in rocks.
elements in rocks decay at the same rate as elements in the remains of organisms.
rocks and organisms both have gases trapped inside that are measured to determine age.

The answer is a) carbon-12

Where is the following?

The reaction 2kalsi3o8 + 2(h+ + hco3-) + h2o  →  al2si2o5(oh)4 + 2k+ + 2hco3- + 4sio2 shows that feldspar kalsi3o8 is chemically altered by hydrolysis to form chalky-looking clay mineral kaolinite al2si2o5(oh)4. the chemical breakdown of potassium feldspar due to exposure to acidic water results to the mineral binding with the water molecule to become kaolinite with silica and potassium and bicarbonate ions in solution.

Ive had this before. your answer would be d. hope this ya