Over the past decades noise pollution has received increased attention and Studies has reported that noise pollution is one of the environmental hazard affecting human, the effects ranges from annoyance to difficulty in falling asleep, which latter leads to high blood pressure (WHO 2005; Ugwuanyi et al., 2005; Den Boer and Schroten 2007; Tetreault et al 2013 ). Although, noise pollution has been one of environmental concerns as early as the inception of civilization when man was introduced to technology
population in Africa has no access to electricity, estimated by the International Energy Agency, which might be caused by the expensive cost and the time required to build power grids for long distances between villages and cities. I think it is possible to increase access of solar power in Africa for people to power up their homes and it seems likely to succeed, as Africa have a high solar radiation, it can receive large amount of light. SunnyMoney, the largest seller of solar lights in Africa , had produced
1. Introduction Pollution is an unwanted change in the environment caused by the introduction of harmful materials or the production of harmful conditions (Botkin & Keller, 2014). Urban air pollution is basically the collection of pollutants created by cities (http://en.cyberdodo.com/files/cyberdodo-and-urban-pollution/1.html). Air quality in cities is the result of a complex interaction between natural and anthropogenic environmental conditions. Air pollution in cities is a serious environmental
deciduous forests, rainforests, and grasslands. They live mainly in South America, but can also live in Africa or Asia. Jaguars prefer areas with flowing water, as they are vigorous swimmers. They use the water for camouflage, when no bushes are around, to hunt for food. Unfortunately for the jaguar, it rarely catches animals due to the "alarm calls." This is when monkeys and birds make noise to warn the prey when a predator is closeby, causing the prey to flee. When it does capture an animal, it
Pollution: Most of the photovoltaic panels are produced of silicon and other toxic metals. Pollution in the environment may lead to decrease the quality and efficiency of photovoltaic cells. New creating technologies can damage the worst of these effects. 4. Inefficiency: Most solar panels can benefit
INTRODUCTION: Hilton is positioned 10 Km west of the escarpment above Pietermaritzburg’s northern suburbs in KwaZulu-Natal, South Africa. It forms part of the Umgeni District situated on the periphery of Pietermaritzburg. Other areas such as Howick and Nottingham Road are within a reasonable distance. Hiltons geographical co-ordinates are 29 33’ 0’’ South. 30 18’ 0’’East. Hilton is a small town covering only 30.90 km squared. Hilton’s relatively flat landscape has allowed for easy construction for
Introduction – the Earth The Earth, with her landmasses, water bodies, mountains, valleys, plains, swamps, grass lands, forests is not just the planet that we live in. The Earth is the basis of our existence, the root of our being. There are no us without the Earth. All cultures recognized the importance of Earth for the sustenance of human life, and thus in every cultural system, we see an ardent reverence and worship of Earth as a life giver, and preserver, even destroyer and thus a creator of
to a large degree agrarian and the agricultural sector contributing more than 40 per cent of gross domestic product (GDP). To feed a growing population will be a great challenge in many parts of the world, but the problems are worst in sub-Saharan Africa, where there has been stagnation and even decline in the agricultural productivity of small-scale