Scientist assist rocks into three different types what is the main basis for the classification system they choose? a. color b. shape of rock c. how it formed d. who discovered it

ANSWER:

Scientist assist rocks into three different types, they make this classification on the basis of their process of formation.

EXPLANATION:

The three classifications of rocks, scientists have given are sedimentary, igneous rocks and metamorphic. The main difference between these rocks is the process of their formation. The rocks that are formed from the sand particles are sedimentary rocks and that formed under the earth surface by metamorphosis process is metamorphic rock. 'Igneous rocks' are formed when magma cools.

Answer (d) may increase or decrease porosity through dissolution or deposition;

Africans learned what the europeans wanted them to learn. instead of learning about african history and current information that could and would them they learned solely what europe wanted them to. and not everyone received the same education, some received better and others none.