<span>A demographer is a specialist who studies the size, composition, and distribution of a population. The statement that is presented is True. </span>Demographers are scientists who study human populations. They tend to map and understand the dynamics of population, which includes birth, death, and migration. Demographers mainly use statistics in mapping their data.
The one that is a feature of ancient Indus cities is :
B. Huge structures that served as temples
C. a large , central building the stored grain
Sanitation system only been popularized in the 1900s, so there is no way it exist in ancient Indus city
hope this helps
The main reason why people left Italy and traveled to America was poverty brought about by unemployment. The dream of earning enough money to return to Italy and buy lands was a great motivator. The journey of 3,000 miles by ship took almost 3 months. They had to pass through the Ellis Island Immigration Center for mental and physical examinations. After the mental and physical examinations, the migrants were sent to a room where they had to answer 32 questions to establish whether they could enter America. Failure in the examinations would mean separation from their families and deportation back to Italy.
Ocean warming provides a good example of a potential positive feedback mechanism.