temperatures of the earth surface as well as the atmosphere. Environmental experts have raised the alarm over the steady rise of earth’s temperature in the last 50 years. It is worth noting that global warming is attributed to the collection of not only Carbon dioxide but also other greenhouse gases and other environmental pollutants in the atmosphere that absorbs solar and sunlight radiation and bounces back to the surface of the earth instead of escaping into space. As a result, these pollutants trap
valves in the heart; they make sure blood only goes one way, in or out. The flow of blood through the heart follows a path to make sure that oxygenated blood from the lungs travels through major arteries and gets carried to body tissues. Carbon dioxide and oxygen travels to and from tiny air sacs in the lungs, through the walls
INTRODUCTION According to National Geographic Education (n.d.), an urban area is where human structures such as houses, commercial buildings, roads, bridges, and railways are heavily develop and that most inhabitants have non-agricultural jobs. Thus, according to this definition, Singapore falls under the category of an urban state. In a city where it is densely populated like Singapore, which has currently 5.46 million people living in its land area of a mere 718 square kilometres, issues like sustainability
demands of the population. There has since been a controversy on the severity of the increase in agricultural activities, creating concern on freshwater pollution because these activities are inevitable. On one hand, this is an essential detrimental cycle, so it is inevitable. On the other hand, with the advancement of technology and new ways to prevent water pollution , is pollution really inevitable ? “Agricultural activities" refers to the systematic raising