The Human Development Index (HDI) is a statistic composite index of life expectancy, education, and per capita income indicators, which are used to rank countries into four tiers of human development.
Answer: 
Explanation:
Given
No. of moles of 
is 
So, for moles of
There are 
1 molecule of contains 1 atom of carbon
i.e. there are 
Answer:
either he is playing hard to get or he ain't worth your time so don't waste it on him
Answer:
D. That something is so different from anything else that its unique.
Explanation:
A metaphor is a figure of speech in which a word or phrase is applied to an object or action to which it is not literally applicable. So D is just the only one that makes sense.
