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b) (i) What is the difference between global warming and climate change? (ii) Explain the role of the forests in climate change.

b) (i) What is the difference between global warming and climate change? (ii) Explain the role of the forests in climate change.

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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8. a) Coal is an example of a non-renewable energy source while wind is an example of a renewable source of energy. (i) Distinguish between renewable and non-renewable energy sources. A coal-powered thermal power plant delivers an electrical power output of 200 MW. The plant has an efficiency of 40%. (ii) Use a block diagram to describe the energy changes taking place in the plant. (iii) If 1 kg of coal releases 20 MJ of energy upon combustion, determine the mass of coal that must be supplied to the plant every day. (iv) State one advantage that coal has over the wind as sources of energy. b) (i) What is the difference between global warming and climate change? (ii) Explain the role of the forests in climate change. c) (i) Describe the main energy changes taking place in a solar-heating panel. (ii) A solar-heating panel attached to the roof of a house is used to heat water from 5 °C to 40 °C. If water flows through the panel at a rate of 0.012 kg s, calculate the heat gained by the water every second.
Transcribed Image Text:8. a) Coal is an example of a non-renewable energy source while wind is an example of a renewable source of energy. (i) Distinguish between renewable and non-renewable energy sources. A coal-powered thermal power plant delivers an electrical power output of 200 MW. The plant has an efficiency of 40%. (ii) Use a block diagram to describe the energy changes taking place in the plant. (iii) If 1 kg of coal releases 20 MJ of energy upon combustion, determine the mass of coal that must be supplied to the plant every day. (iv) State one advantage that coal has over the wind as sources of energy. b) (i) What is the difference between global warming and climate change? (ii) Explain the role of the forests in climate change. c) (i) Describe the main energy changes taking place in a solar-heating panel. (ii) A solar-heating panel attached to the roof of a house is used to heat water from 5 °C to 40 °C. If water flows through the panel at a rate of 0.012 kg s, calculate the heat gained by the water every second.
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