History Of Development And Demographic Change

ABSTRACT Limestone, which is known as sedimentary rock composed mainly of calcium carbonate (CaCO3), usually in the form of calcite or aragonite. It may contain considerable amounts of magnesium carbonate (dolomite) as well; minor constituents also commonly present include clay, iron carbonate, feldspar, pyrite, and quartz. Limestone occurs only in the sedimentary basins in Nigeria. It occurs mainly in the Benue Trough (Lower, Middle […]

ABSTRACT This study is on the motion of the planet. A planet is described as a celestial body that is in orbit around the Sun, has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and has cleared the neighbourhood around its orbit. This study is aimed at the characteristics of the planet (earth) and its motion. Table of contents Cover page Title pa […]

Diseases caused by contaminated water consumption and poor hygiene are among the leading causes of death in children, the elderly and people with compromised immune system. The present study aims to assess the drinking water quality of some selected drinking water sources in the chosen study area using water quality index (WQI). Samples of drinking waters were collected from two different sources - usuma raw water and tap water in Bwar […]