Respuesta :
Answer:
a and c and b rock
a and c and d a mineral
Explanation:
a is a metamorphic rock and a crystal and crystals are mineral
b is Sedimentary rock
c is scandium to anywhere from Copernium and scandium Copernium are found in ores and ore are rooks with mineral and metal
d can be calcium sodium phosphorus give me brainliest please
Answer:
Material A is mineral, material B is a rock, material C is a mineral and material D is a rock.
Explanation:
A mineral is a natural substance that generally is solid while rocks are made of a combination of different minerals, besides rocks are characterized by its texture, origin and composition while minerals are characterized by its hardness and color.
According to this definition we can appreciate that material A is only made of one material and it is characterized by its color so we can conclude that it is a mineral. Material B is composed by two materials so it is a rock. Material C is characterized by its color and appearance and it is made of the same elements, with this information we conclude that material C is a mineral. Material D is made of different elements and is characterized by its porosity texture what lead us to classify it as a rock.