Sandstone and basalt can be changed by heat and pressure to form a-limestone b-metamorphic rocks c-sedimentary rocks d-granite

B-metamorphic rocks

Explanation:

Metamorphic rocks are the type of rock that has their origin in the transformation of other rocks (sandstone and basalt, for example) due to pressure and temperature. Examples of metamorphic rocks are gneiss (formed from granite), slate (originated from clay) and marble (limestone formation), quartzite (formed from sandstone) and rocks formed from basalt.

The oldest rocks are igneous and metamorphic rocks, which emerged respectively in the Pre-Cambrian and Paleozoic era. These rocks are called crystalline because of the crystallization of the minerals that formed them.

d.

explanation:

prophase: we can observe the chromosomes to coil up and condense. they become visible. nuclear membrane and envelope disintigrate.s

metaphase: chromosomes align at the center, the metaphase plate. spindle fibers attach to centromeres of the sister chromatids. they meet at kinetochores.

anaphase: sister chromatids are pulled towards each opposing centromere, set on different poles.

telophase: chromosomes are now clustered up only on either sides of the cell. nuclear membranes reform, and a new cell wall forms along the cell plate. this will lead to cytokinesis, the process that divides the cell membrane and forms the cell wall.