Well not only do humans and animals evolve plants do too.DNA changes over time which changes not only the appearance but the way the plant acts and protects itself .there for the black leave was from a different leave thats DNA changed over time and it reacted to the crops grown by farmers and accelerated the growth hormones in the plant.
Answer: B.China has a large population, so its GDP per person is only modest
Explanation:
GROSS DOMESTIC PRODUCT PER PERSON also known as GROSS DOMESTIC PRODUCT PER CAPITA is a measure of a country's prosperity and designation i.e, whether they are a developed or developing nation.
It is calculated by dividing a country's GDP by the amount of people in the country.
Countries with large populations generally have low GDP per capitas because the denominator / divisor is so high. Countries like Nigeria, India and China fall into this category and are therefore known as DEVELOPING countries.
Conversely, countries with smaller populations like Luxembourg and Lichtenstein have really high GDP per capitas and as such are considered to be DEVELOPED countries.
The most common are capitalism and socialism.
From 1700, Peter I gave industrial development immense importance. Metallurgical and manufacturing industries were created on a large scale. Industrialists were given various privileges including the right to buy peasant serfs for labor in workshops. Studies were conducted on the industrial methods used in other countries and foreign experts were employed. The foreign trade turnover increased seven times during the reign of Peter I and by the middle of the 18th century, Russia had overtaken Europe in metallurgical industry.
Urban areas have a lower life
expectancy than those in the rural areas because they:
1)
have more likely a higher rate of crime and
violence in its neighbourhood,
2)
have the presence of poverty-stricken population
that possibly carry contagious diseases,
3)
have a heavier weight of stress and burden upon
them.
People living in urban areas may lack proper health services
when they’re from a lower economic status.
