Answer:
Halife of C-14 is=14(RAM÷2)
You get=7 but further more let's say after 3 half life as your question stated it may result to decimal something which is impossible (as nucleons never be decimal)
Hence after 3half life it will continue to be 7
 
        
             
        
        
        
Answer:
Rain makes up part of earth's water cycle
Water evaporates from streams, lakes, and oceans, then condensation and precipitation occur in the form of rain. 
Explanation:
I'm pretty sure this question is implying that the answers should be directly related to the water cycle. While some of the other sentences might have some truth to them, they are too vague to be considered fact, and they're not necessarily related to the process of the water cycle.
 
        
             
        
        
        
Ans. 
A monohybrid cross can be defined as 'a cross between two individuals having different copies of a chromosome or gene of interest, which is responsible for variations in a single trait.'
These variations in a single trait are controlled by two or more alleles for a single chromosomes. For example, a cross between tall pea plant and dwarf pea plant to study the inheritance of plant height.
Thus, the correct answer is 'option). they differ in a single trait.'
 
        
             
        
        
        
The elements that are best known for helping performers memorize an epic poem are rhyme, rhythm, and repetition of certain words.