Sustainability of the Environment

Question 3:(a) Figure 3 shows the symbol for carbon footprint. State four activities that can be related to carbon footprint. Figure 3 (b) Figure 4 shows various types of environmental pollution. Study the information in Figure 4 and answer the following questions.(i) Identify a type of pollution that is related to energy.(ii) Name the type … Read more

Question 1:Name three types of environmental pollution. Answer:Land pollution, water pollution, air pollution, thermal pollution(any three) Question 2:(a) What is eutrophication?(b) Name the type of pollution related to eutrophication. Answer:(a)Eutrophication is the response of the ecosystem towards the addition of phosphate and nitrate ions (from detergents, fertilisers and rubbish) into an aquatic ecosystem. (b)Water pollution … Read more

Question 1:What is meant by carbon footprint? Answer:Carbon footprint usually refers to the total carbon dioxide released to the atmosphere as a result of activities of individuals, events, organisations, communities or products used in daily life. Question 2:State seven factors that normally influence the impact of a product that is used in an individual’s daily … Read more

Question 1:What are Negative Emission Technologies? Answer:Negative Emission Technologies are technologies that remove the content of carbon dioxide in the atmosphere. Question 2:Give one example of microorganism used in Negative Emission Technologies. Answer:Microalgae Question 3:What is the relationship between solar technology and zero carbon emission? Answer:Solar technology is one example of zero carbon emission because … Read more

Question 1:Figure 1 shows an experiment to study the level of water pollution in different water samples.Table 1 shows the time taken for the methylene blue solution to decolourise in the different water samples in Figure 1.(a) State one hypothesis for this experiment.(b) State the variables in this experiment.(i) Constant variable(ii) Manipulated variable(c) Based on … Read more

Question 1:Diagram 1.1 shows a type of an environmental pollution in an industrial area.(a)(i) Based on Diagram 1.1, what is released by the factory? [1 mark](a)(ii) State the type of pollution based on the answer in (a)(i). [1 mark](b) State the effect of pollution shown in Diagram 1.1 on human being. [1 mark](c) Suggest one … Read more

Question 1:Diagram shows the carbon cycle.(a) In Diagram, name process P, Q and R using the following information. [3 marks](b) What will happen to the number of consumers if all producers die? [1 mark](c) Fill in the blanks with the words given.Uncontrolled logging will   ____(i)_____ the population of producer. Therefore, the quantity of carbon dioxide in … Read more