Answer:
In the earth sciences, parent rock, also sometimes substratum, is the original rock from which younger rock or soil is formed. In soil formation the parent rock (or parent material) normally has a large influence on the nature of the resulting soil; for example, clay soil is derived from mudstone while sandy soil
Explanation:
Answer:
C) control
Explanation:
The control group can be explained as the group in an experiment or study that does not receive treatment by the researchers and is then used as a benchmark to measure how the other tested subjects do.
This group is used in an experiment or research as a way to ensure or know that your experiment actually works. In other words, it is used in an experiment to establish its validity.
In this case, the participants that were told to solve the problems alone, were in the control group. And they were used to establish the validity of the study.
Answer:
Explanation:
Need is something that's important to one's survival such as air, shelter, food. Want is something an individual desire such as car, phone. Need is more paramount than wants.
Economics helps us to make decisions and understand why certain things are the way they're. Economics helps us to understand what will happen if there's increase in prices of s good. Economics shapes our understanding of the economy.
