The breakdown of rock into smaller particles from the effects of wind, water, and ice is .

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

→

answer; talc and gypsum;

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2