Fossil compaction is not a process which forms metallic ore whereas the other three ie placer processes, hydrothermal fluids and igneous processes all can help to form metallic ores. Placer does it by stream transport and separation of the heavy gold, and the fluids can carry metals and deposit them in the fractures in the solid rock and igneous processes like fractional crystallization can form a concentration of metallic ores also.
The electric distance meter and extensometer are used to measure length between two points and tensile strength respectively.
Electronic distance measurement uses electromagnetic waves such as infrared light while extensometer place the object under stress.
<h3>What is Electronic distance measurement and extensometer?</h3>
Electronic distance measurement and extensometer are tools that can be used to Know the length between two points and tensile strength respectively using different techniques.
The extensometer usually places a sample under stress to determine the length of the material while Electronic distance measurement uses beam of infrared light.
Learn more about Electronic distance measurement at: brainly.com/question/777464
Explanation:
the answer is a just tool test
B. Qualitative as they will be writing down the physical description of their observations. Quantitative is numbers, empirical is not correct, and theoretical is guessing.
They're called grains and they contribute to the texture of the rock.