Answer: R<span>ock samples.
Explanation: Geologists studied and told us that the Earth's crust is composed of various chemicals, minerals, and rock samples. Even the chemicals and minerals are obtained from within the rock samples. Minerals are to rocks such as vegetables are to the salad. These minerals are extracted and processed by geologist and such rock which contains traces of minerals are called ores. </span>
They occur commonly in the Midwest.
Answer:
The common factors of 72 are
- 1,2,3,4,6,8,912,18,24,36,and72
Scientists attribute soil formation to the following factors: Parent material, climate, biota (organisms), topography and time. ... The physical, chemical and biological properties of the different soils can have a big effect on how to best manage them.
