Questions

New York City, London, and Tokyo are the richest cities in the world 2018, according to their ranks.

Radioactive decay is likely to occur when the nuclei of an atom doesn't have enough binding energy to hold the nucleus together due to excess of rotons or nutrons in it.

The study of statistics such as births, deaths, income, or the incidence of disease, which illustrate the changing structure of human populations.

In brief, Study of both quantitative and qualitative aspects of human population.

1. Quantitative aspects include composition, density, distribution, growth, movement, size, and structure of the population.

2. Qualitative aspects are the sociological factors such as education quality, crime, diet, development, nutrition, wealth and well being.

The charophytes are the extant group of green algae that are most closely related to modern land plants.

Tehri Dam on Bhagirathi River in Uttarakhand (Height of 260 meters)