4. ¿Qué proceso ocurre dentro de los cloroplastos? a. sintesis de ARN
b. síntesis de ADN
c. fotosíntesis
d. respiración celular

here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.

it is a. i hope this .