- Of all the major fertilizer nutrients, nitrogen is the main nutrient affecting soil pH, and soils can become more acidic or more alkaline depending on the type of nitrogen fertilizer used.
Some of the most important factors of social change are as under: Certain geographic changes sometimes produce great social change. Climate, storms, social erosion, earthquakes, floods, droughts etc., definitely affect social life and induce social change. Human life is closely bound up with the geographical conditions of the earth.
have social and economic dimensions worthy of research and analysis (3). In addition to policy changes and trends, environmental trends are worthy of study. For example, what are the social and economic impacts of transportation changes brought about by global warming? If policy makers decide to limit emissions of carbon dioxide, motor