Answer:
Scientists repeats the steps in cycle mode and in order to be sure about the results he/she chosen.
The correct answer for your question is C.
Most saltwater-use is to generate electricity.
There are many ways today to generate electricity, and saltwater is one of those ways.
Correct answer - C Phenotype.
Why? - Phenotype, all the observable characteristics of an organism that result from the interaction of its genotype (total genetic inheritance) with the environment. Examples of observable characteristics include behaviour, biochemical properties, colour, shape, and SIZE.