Use the isdigit method to see if a character is a numeric digit character.
A positional numeral system uses a single symbol, a numerical digit, to represent numbers. It is frequently abbreviated to "only digit." Examples are "2" and "25." The word "digit" derives from the fact that the ten fingers (Latin: digiti) on each hand correspond to the ten symbols of the conventional base-ten numeric system, or decimal (Old Latin: decem, meaning "ten") digits.
The absolute value of the base determines the required  numerical digit for a given numeral system with an integer basis. For instance, the base-10 decimal system requires ten digits (0 through 9), whereas the base-2 binary system only needs two digits (0 and 1).
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The correct option is the principle of judicial review is not in the constitution.
<h3>What is judicial review?</h3>
This is when a court assess the the actions that are taken or performed by a public institution. Here, the actions of the three arms (Federal, executive and the legislature) of government are scrutinized.
Hence, the correct option is the principle of judicial review is not in the constitution.
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The right option is; d. the average American watches 4 hours of television per day.
A sedentary lifestyle is a style of living which involves increased amount of daily sitting or lying down such as when watching television, when playing video games, when reading, or working on the computer. A sedentary lifestyle can contribute to negative health problems such depression, diabetes, increased anxiety, and cardiovascular disease.
 
        
                    
             
        
        
        
Answer:
A. They always remain above your horizon.
Explanation:
A circumpolar star is a star that always remains above your horizon.
 
        
             
        
        
        
Answer: 
Environment denotes the sum total pf physical and biological factors that affect the survival, growth, development and reproduction of an organ ism. Population, environment, and development are interrelated to each other. Environment affects the life of living organ isms and socio-economic development process.
Explanation: