Synthetic Gemstones Throughout history‚ gemstones have been reserved mainly for royalty and families who were very wealthy. People who could not afford them often sought ways to have the things that they desired. The practice of imitating jewels and gemstones has been around almost as long as they have been coveted. This is true as far back as the "Ancient Egyptians who feigned gemstones with glass and glaze‚ because genuine were too expensive and/or too rare" (Schumann‚ 242). One of the earliest
Free Diamond
contaminated water. The World Health Organization estimates that 80% of all sickness and disease in developing countries is due to unsafe water. As water pollution is one of the most widespread problems and it has deadly effects‚ I chose this topic. Water pollution is the contamination of water bodies (e.g. lakes‚ rivers‚ oceans and groundwater). Water pollution occurs when pollutants are discharged directly or indirectly into water bodies without adequate treatment to remove harmful compounds. The project
Premium Water pollution Water Water treatment
CHEMICAL POLLUTANTS AND THE ENVIRONMENT The effects of land pollution are far-ranging in the industrial age. The nature of the industrial revolution and the lack of a sustainable development model for industrial progress have allowed the creation of chemicals and products which may serve the idea of convenience or productivity or efficiency‚ however‚ the concept of environmental stewardship is largely an afterthought. This has led to long-lasting chemicals which persist in the environment and are
Premium Pollution Industrial Revolution Soil contamination
SOIL POLLUTION INTRODUCTION Soil is the thin layer of organic and inorganic materials that covers the Earth’s rocky surface. The organic portion‚ which is derived from the decayed remains of plants and animals‚ is concentrated in the dark uppermost topsoil. The inorganic portion made up of rock fragments‚ was formed over thousands of years by physical and chemical weathering of bedrock. Productive soils are necessary for agriculture to supply the world with sufficient
Premium Waste Waste management Pollution
availability of fresh water and its unequal distribution make water pollution a matter of great concern. Water pollution is generally localized and confined‚ making it more severe. The pollutants undergo many reactions and can become hazardous. 70 % of India’s fresh water is polluted‚ including several high altitude lakes. While water pollution is easier to study and manage‚ its control is highly complex and very costly. Water pollution is defined as presence of any foreign substance (organic‚ inorganic
Premium Water Oxygen Water pollution
Basin: Integrating residents’ perceptions and concerns resulting from air pollution Jyoti Jaggernath* Abstract With a complex mix of large scale industries and major transport networks‚ the South Durban Basin (SDB) residential area has been subjected to a considerable amount of environmental impacts and conflicts. A major concern in the area is the effects of air pollution on human health and ecology that are caused by the emissions of unacceptable levels of toxins‚ chemical waste and a large
Free Air pollution Pollution Environmentalism
I just came back from a business trip this weekend. It was the first time I worked as a “coordinator” for my company. I learned a lot and got “business culture shock” as well. I am not sure if there is the term in English. I just felt I was in another world that I had to speak another language and used another way of thinking especially in business meetings. For example‚ my boss blamed me that I shouldn’t have said “sorry” if he hadn’t said that. In my opinion‚ in Japan‚ it’s very common to
Free Culture Cross-cultural communication The Culture
Pollution and Society *By Osanyinpeju* Aisha We all know that pollution in our world effects two essential aspects of our planet: air and water. Although their pollutants are emitted in completely different ways‚ they both harm living organisms. Air pollution is predominately emitted though the exhaust of motor vehicles and the combustion of fossil fuels‚ whereas water pollution is the result of industrial waste and environmental accidents. Our society knows that pollution is harmful and a serious
Premium Oxygen Water Air pollution
first plastics made from synthetic components‚ Bakelite was used for its electrical non-conductivity and heat-resistant properties in electrical insulators‚ radio and telephone casings‚ and such diverse products as kitchenware‚ jewelry‚ pipe stems‚ and children’s toys. HISTORY: HOW IT CAME INTO BEING. Dr. Baekeland had originally set out to find a replacement for shellac‚ made from the excretion of lac bugs. Chemists had begun to recognize that many natural resins and fibres were polymers‚ and Baekeland
Premium Acetic acid Polymer Acid dissociation constant
Qualities of a good boss In order to have a good administration from different companies what people need is a really good boss. If the boss is the most important person in a job‚ the employers and customers are looking for someone who qualifies with certain aspects. A boss is a person who is trying to provide a good environment; however‚ a boss does not work alone but he/she is the head and example for the team. Moreover‚ there are several qualities to being a good boss. First of all‚ a boss
Premium Decision making Boss Leadership