They are alike because they both have the "n" sound as the beginning. KNit and GName but have the "nnn" sound.
The difference is the same sound is spelled differently. They both make the same nnn sound, but the first two letters are different.
Geologists classify rocks in three groups, according to the major Earth processes that formed them. The three rock groups are igneous, sedimentary, and metamorphic rocks. Anyone who wishes to collect rocks should become familiar with the characteristics of these three rock groupsOne way to tell if a rock sample is sedimentary is to see if it is made from grains. Some samples of sedimentary rocks include limestone, sandstone, coal and shale. Igneous rocks form when magma from inside the Earth moves toward the surface, or is forced above the Earth's surface as lava and ash by a volcano. Igneous rocks are formed from melted rock that has cooled and solidifiedhe three rock groups are igneous, sedimentary, and metamorphic rocks
