Answer:
B) Identifying the minerals within it
Explanation:
Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date the age of rock layers.
Yes. A person comes across many colds in a year or a life time and produces antibodies for each. Babies get many colds in the first years and fewer as they <span>get older because they have made antibodies.</span>
Answer: Clay, sand and silt characteristics
Explanation: I found the picture and the rest of your question.
Soil identification as sandy clay
Soil Texture indicates the composition of that soil by which it shows the amount of clay, sand, and silt.
That is a classification instrument and it's used in laboratories to show soil classes. This identification is showing soil class by the characteristics of silt, clay, and sand.
Soil texture can be defined by feel method or hydrometer methods for example.
Characteristics:
- 0% to 28% of Silt
- 80% to 45% of Sand