Hi friend,
The answer is (A) Metropolitan areas.
Hope it helps....!!!!
Answer:
Longitudinal design
Explanation:
Longitudinal design: Also referred to as a panel study or longitudinal survey. It is described as a research design that includes the observations of the same variables repeatedly for either long or short periods on time. The variable used in the research, for example, can be different individuals. Fundamentally, the longitudinal research design collects information or data about an individual or a group of individuals.
Types:
1. Panel study.
2. Cohort study.
The following statement best describes the sample used in the longitudinal type of descriptive design.
The U.S. Navy is a part of the Department of Defence. Alongside the U.S. Air Force, the U.S. Army and the U.S. Marine Corps.
Answer: Conservation
Explanation: The conservation theory of Swiss scientist Jean Piaget speaks of the ability to logically perceive a certain amount, volume, despite the different shape of a vessel containing a certain liquid, or size despite on how many different parts is divided a particular object, food as in this case. Piaget studied this on children, where he performed experiments and tested children's abilities to see some quantities remain the same even though the shape changes, or some objects remain the same, as far as sizes are concerned, when divided into several parts.
<span>melting is the answer
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