The Human Development Index (HDI) is a combined statistical comparison or average comparison of education, per capita income indications and life expectancy and is used to rank the countries into tiers or levels of development.
A country with higher HDI score will have higher lifespan of people, higher GDP or per capita income and higher education. Mostly the developed countries will have high HDI.
According to the data available for 2014 the HDI ratings of the countries are: Norway at first position followed by Switzerland, Australia, Germany and Singapore and so on.
Answer:
I. evolved from ancestors that walked
Explanation:
Whales and pythons have vestigial structures, which are structures (hind legs) which are no longer useful to them since they have evolved. The ancestors of the whale and python did use the hind legs but over generations the whale and snake have adapted to new environments and they no longer need them.
The leading contimination in the US is sugar becasue it affects ur body and makes u lazy.